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Cheap flights from St. Louis (STL) to Washington, D.C. (WAS) from $38

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — WAS
Jun 15 — Jun 221
From?
To?
Sat 6/15
Sat 6/22
1 adult, Economy
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The best prices from Lambert-St Louis to Washington, D.C. are usually found in January or February, booked 62 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from St. Louis to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 10, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$234

One-way from

$105
High demand for flights, 16% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Lambert-St Louis to Washington, D.C. (WAS)
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One-way flight from Lambert-St Louis to Washington, D.C. (WAS)
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What is the cheapest day to fly round-trip from St. Louis to Washington, D.C.?

Flights from St. Louis to Washington, D.C. are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

How far in advance should I book a flight from St. Louis to Washington, D.C.?

Travelers have found it’s best to book a flight 53 days in advance to save up to 108% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Washington, D.C. 1-2 weeks in advance for as low as $327, or $466 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Washington, D.C.?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from St. Louis in January are about $276 on average during January, but can be found for as low as $108.

What is the cheapest time of day to fly from STL to WAS?

It’s typically best to fly out from St. Louis to Washington, D.C. in the evening. Doing so could potentially save you 49% on the flight price compared to flying at noon, which is usually more expensive.

Cheap St. Louis to Washington, D.C. flights in June & July 2024

Find cheap flight options from St. Louis to Washington, D.C. specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 10, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.
Tue 7/237:33 pmSTL - BWI
1 stop11h 17mFrontier
Tue 7/308:54 pmBWI - STL
1 stop13h 31mFrontier
Deal found 6/9$143
Wed 7/248:02 pmSTL - BWI
1 stop15h 34mFrontier
Tue 7/308:54 pmBWI - STL
1 stop13h 31mFrontier
Deal found 6/9$153
Tue 6/187:44 pmSTL - BWI
1 stop11h 03mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$158
Mon 6/178:22 pmSTL - BWI
1 stop22h 23mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$166
Tue 7/1610:11 amSTL - BWI
1 stop6h 15mSpirit Airlines
Wed 7/2410:40 pmBWI - STL
1 stop19h 49mSpirit Airlines
Deal found 6/9$170
Tue 7/93:23 pmSTL - BWI
1 stop23h 39mMultiple Airlines
Tue 7/168:54 pmBWI - STL
1 stop13h 31mMultiple Airlines
Deal found 6/9$173
Thu 6/137:44 pmSTL - BWI
1 stop11h 03mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$178
Wed 7/103:18 pmSTL - BWI
1 stop5h 48mAmerican Airlines
Tue 7/231:33 pmBWI - STL
1 stop4h 23mAmerican Airlines
Deal found 6/9$180
Tue 7/167:33 pmSTL - BWI
1 stop11h 17mFrontier
Tue 7/238:54 pmBWI - STL
1 stop13h 31mFrontier
Deal found 6/9$181

St. Louis to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.
Tue 7/237:33 pmSTL - BWI
1 stop11h 17mFrontier
Tue 7/308:54 pmBWI - STL
1 stop13h 31mFrontier
Deal found 6/9$143
Tue 8/2010:32 pmSTL - BWI
1 stop12h 31mFrontier
Mon 9/28:00 amBWI - STL
1 stop13h 20mFrontier
Deal found 6/9$145
Tue 8/2010:32 pmSTL - BWI
1 stop12h 31mMultiple Airlines
Wed 9/412:12 pmBWI - STL
1 stop19h 55mMultiple Airlines
Deal found 6/9$149
Wed 7/248:02 pmSTL - BWI
1 stop15h 34mFrontier
Tue 7/308:54 pmBWI - STL
1 stop13h 31mFrontier
Deal found 6/9$153
Tue 8/2010:32 pmSTL - BWI
1 stop12h 31mFrontier
Thu 9/58:00 amBWI - STL
1 stop24h 02mFrontier
Deal found 6/9$155
Tue 6/187:44 pmSTL - BWI
1 stop11h 03mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$158
Fri 8/238:12 amSTL - BWI
2 stops26h 12mSpirit Airlines
Tue 8/2712:24 pmBWI - STL
2 stops19h 58mSpirit Airlines
Deal found 6/7$165
Mon 6/178:22 pmSTL - BWI
1 stop22h 23mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$166
Tue 7/1610:11 amSTL - BWI
1 stop6h 15mSpirit Airlines
Wed 7/2410:40 pmBWI - STL
1 stop19h 49mSpirit Airlines
Deal found 6/9$170

St. Louis to Washington, D.C. flights leaving soon

Find last-minute flight options from St. Louis to Washington, D.C. for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Check out these flights departing soon from St. Louis to Washington, D.C.. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 6/187:44 pmSTL - BWI
1 stop11h 03mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$158
Mon 6/178:22 pmSTL - BWI
1 stop22h 23mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$166
Fri 6/147:44 pmSTL - BWI
1 stop18h 04mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$188
Sun 6/167:44 pmSTL - BWI
1 stop11h 03mFrontier
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Deal found 6/9$206
Sat 6/156:22 pmSTL - BWI
1 stop6h 06mMultiple Airlines
Sat 6/228:15 pmBWI - STL
1 stop11h 52mMultiple Airlines
Deal found 6/9$207
Fri 6/145:36 pmSTL - DCA
1 stop17h 29mFrontier
Thu 6/207:00 amDCA - STL
1 stop8h 32mFrontier
Deal found 6/9$225
Tue 6/183:23 pmSTL - BWI
1 stop8h 22mSpirit Airlines
Wed 6/2610:45 pmBWI - STL
1 stop19h 43mSpirit Airlines
Deal found 6/7$226
Fri 6/145:36 pmSTL - DCA
1 stop17h 29mFrontier
Wed 6/196:59 pmDCA - STL
1 stop20h 33mFrontier
Deal found 6/9$228
Fri 6/145:36 pmSTL - DCA
1 stop27h 21mFrontier
Fri 6/217:00 amDCA - STL
1 stop27h 29mFrontier
Deal found 6/9$236

One-way flights to Washington, D.C. from St. Louis

Search for one-way flight options from St. Louis to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Users in need of a one-way flight from St. Louis to Washington, D.C. can choose from these deals. Users in need of a round-trip flight from St. Louis to Washington, D.C. instead should update the search form at the top of page.
Tue 9/105:20 pmSTL - BWI
1 stop6h 52mSpirit Airlines
Deal found 6/9$38
Tue 9/105:20 pmSTL - BWI
2 stops23h 45mSpirit Airlines
Deal found 6/9$62
Tue 7/2311:26 amSTL - BWI
1 stop11h 24mSpirit Airlines
Deal found 6/9$69
Thu 7/116:19 pmSTL - BWI
1 stop13h 21mSpirit Airlines
Deal found 6/9$72
Fri 6/215:36 pmSTL - DCA
1 stop17h 29mFrontier
Deal found 6/9$73
Tue 7/163:47 pmSTL - DCA
1 stop19h 22mFrontier
Deal found 6/8$75
Tue 9/107:57 amSTL - BWI
3 stops16h 15mSpirit Airlines
Deal found 6/9$78
Fri 7/55:49 pmSTL - DCA
Nonstop2h 00mAmerican Airlines
Deal found 6/9$84
Thu 7/46:09 amSTL - DCA
Nonstop2h 02mAmerican Airlines
Deal found 6/8$85

Find flights from St. Louis to Washington, D.C. within your budget

Customize your flight search to find flights from St. Louis to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$143 - $245

Route

Depart

Return

Price

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Tue 7/23

1 stop11h 17m

Baltimore/Washington

Tue 7/30

1 stop13h 31m

$143

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Tue 8/20

1 stop12h 31m

Baltimore/Washington

Mon 9/2

1 stop13h 20m

$145

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Tue 8/20

1 stop12h 31m

Baltimore/Washington

Wed 9/4

1 stop19h 55m

$149

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Wed 7/10

1 stop15h 07m

Washington, D.C. Reagan-National

Tue 7/16

1 stop15h 26m

$153

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Fri 8/23

2 stops26h 12m

Baltimore/Washington

Tue 8/27

2 stops19h 58m

$165

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Wed 8/21

Nonstop1h 59m

Washington, D.C. Reagan-National

Wed 9/4

Nonstop2h 20m

$179

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Mon 7/1

1 stop5h 21m

Washington, D.C. Reagan-National

Fri 7/5

1 stop6h 56m

$188

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Tue 7/9

Nonstop2h 10m

Washington, D.C. Dulles Intl

Sat 7/13

1 stop5h 23m

$209

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Sun 11/10

1 stop16h 15m

Baltimore/Washington

Thu 11/14

1 stop23h 08m

$245

Flights are sorted by cheapest first

Deals found on 6/9

How far ahead should I book a flight from St. Louis to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Washington, D.C.. Price data was last updated on May 31, 2024.
Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

What is the cheapest day to fly from St. Louis to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Washington, D.C.. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated June 10, 2024.
Peruse reviews from past customers who have flown with United Airlines, Delta and Sun Country Air from St. Louis to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,295 reviews

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,295 reviews
Delta
8.0
Very good
10,295 reviews

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Avelo Airlines
7.5
Good
70 reviews
Delta
8.0
Very good
10,295 reviews

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,661 reviews
Delta
8.0
Very good
10,295 reviews

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,172 reviews
Delta
8.0
Very good
10,295 reviews

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
588 reviews
Delta
8.0
Very good
10,295 reviews

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Washington, D.C.?

    If you book a flight to Washington, D.C. from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 11 flights from Lambert-St Louis to Washington, D.C. per day from 5 different airlines.

  • Can I find flights from St. Louis to Washington, D.C. for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Washington, D.C. for under $200. The cheapest flight booked recently is on Frontier for just $143, but on average you can expect to pay $168.

  • Are there nonstop flights from St. Louis to Washington, D.C. for under $200 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Washington, D.C. under $200. A good price for a nonstop flight from St. Louis to Washington, D.C. is less than $305.

  • Are there last-minute flights available from St. Louis to Washington, D.C. for under $200?

    There are currently 20+ open flights from St. Louis to Washington, D.C. within the next 7 days for less than $200.

  • What are the cheapest airlines flying from St. Louis to Washington, D.C. round-trip?

    Flying on Frontier is currently your cheapest option to Washington, D.C., with prices starting at $143. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and American Airlines, with the lowest prices starting at $165 and $179, respectively. Frontier is 48% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Washington, D.C. one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $38. Users have also found prices from $73 and $84 on Frontier and American Airlines, respectively.

  • What are the most popular routes from St. Louis to Washington, D.C.?

    The most popular route from St. Louis to Washington, D.C. is Lambert-St Louis - Washington, D.C. Reagan-National. You may also consider Lambert-St Louis - Washington, D.C. Dulles Intl or Lambert-St Louis - Baltimore/Washington.

  • What are the most reliable airlines from St. Louis to Washington, D.C.?

    The top 3 most reliable airlines when flying from St. Louis to Washington, D.C. are Avianca (95%), Copa Airlines (95%) and Scandinavian Airlines (93%).

  • What are the cheapest flights from St. Louis to Washington, D.C.?

    While on average a flight from St. Louis to Washington, D.C. is generally $1,103, our data shows the cheapest flight currently is $135. When looking at the most popular route, (Lambert-St Louis - Washington, D.C. Reagan-National), you can expect to pay $166 for that flight.

  • What does STL to IAD mean?

    STL and IAD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to IAD refers to a flight route from Lambert-St Louis Airport to Washington, D.C. Dulles Intl Airport. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from St. Louis to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on St. Louis to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Washington, D.C..

  • Can I find deals for business class flights from St. Louis to Washington, D.C.?

    Yes. Cheapflights offers flight deals from St. Louis to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Washington, D.C. that allow pets onboard?

    Many airlines flying from St. Louis to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Washington, D.C.?

    Yes, you can often find last-minute deals on St. Louis to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Washington, D.C. flight deals updated?

    The St. Louis to Washington, D.C. flight deals you see on this page were last updated on 6/9.

  • What are the most popular airlines that fly from St. Louis to Washington, D.C.?

    American Airlines, Delta and United Airlines are the most popular airlines when flying from St. Louis to Washington, D.C..

  • What is the cheapest month to book a flight from St. Louis to Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Washington, D.C. (average of $278). Flying from St. Louis to Washington, D.C. in June is currently the most expensive (average of $382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Dulles Intl flights
Kansas City to Reagan-National flights
St. Louis to Reagan-National flights
St. Louis to Dulles Intl flights
Springfield to Dulles Intl flights
Springfield to Reagan-National flights
Columbia to Reagan-National flights
Columbia to Dulles Intl flights
Joplin to Dulles Intl flights
Joplin to Reagan-National flights
Fort Leonard Wood to Reagan-National flights

Top 5 airlines flying from St. Louis to Washington, D.C.

Discover the top 5 airlines that operate flights from St. Louis to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$179FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$142Average$176FlexibilityNo cancel feeOn-time65%
DeltaCheapest$165Average$303FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$191Average$348FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$195Average$379FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Washington, D.C. by cabin class

Find flights from St. Louis to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from St. Louis to Washington, D.C.

Find hourly flight availability from St. Louis to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 10, 2024.
9%of flight departuresEarly morningMidnight to 6 am
73%of flight departuresMorning6 am to noon
13%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
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Weekly flight availability from St. Louis to Washington, D.C.

Explore weekly flight availability from St. Louis to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 10, 2024.
Sunday10daily flights
Monday13daily flights
Tuesday12daily flights
Wednesday13daily flights
Thursday12daily flights
Friday13daily flights
Saturday10daily flights

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