Question 1

What are the cheapest airlines flying from St. Louis to San Diego round-trip?

Accepted Answer

Flying on Frontier is currently your cheapest option to San Diego, with prices starting at $128. Another option worth looking into is Spirit Airlines, starting at $133 round trip. You may be able to fly from St. Louis to San Diego for 64% less than the average price by searching for these airlines.

Question 2

What are the cheapest airlines to fly from St. Louis to San Diego one-way?

Accepted Answer

The cheapest airlines for a one-way flight from St. Louis to San Diego are Frontier ($76), Spirit Airlines ($104), and American Airlines ($123).

Question 3

When is the best time to book a flight from St. Louis to San Diego?

Accepted Answer

Currently, October is the cheapest month in which you can book a flight from St. Louis to San Diego (average of $288). Flying from St. Louis to San Diego in July is currently the most expensive (average of $356). 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.

January

$292

February

$297

March

$339

April

$298

May

$297

June

$346

July

$356

August

$308

September

$298

October

$288

November

$337

December

$305

Question 4

When is the best time to book a flight from St. Louis to San Diego?

Accepted Answer

To ensure you get the cheapest price possible for a flight from St. Louis to San Diego, you should look to book at least 19 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 5

When is the cheapest time to fly from St. Louis to San Diego?

Accepted Answer

Travelers seeking maximum savings on their St. Louis to San Diego flight should consider departing on Sunday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

How recently were the St. Louis to San Diego flight deals updated?

Accepted Answer

The St. Louis to San Diego flight deals you see on this page were last updated on 5/18.

Question 7

What are the most popular airlines that fly from St. Louis to San Diego?

Accepted Answer

Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to San Diego.

Question 8

Can I find flights from St. Louis to San Diego for under $100 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from St. Louis to San Diego for under $100. The cheapest flight booked recently is on Multiple Airlines for just $100, but on average you can expect to pay $146.

Question 9

Are there last-minute flights available from St. Louis to San Diego for under $200?

Accepted Answer

There are currently 20+ open flights from St. Louis to San Diego within the next 7 days for less than $200.

Question 10

Where are the most common layover locations when flying from St. Louis to San Diego?

Accepted Answer

St. Louis to San Diego flights have a layover in Denver most often.

Question 11

Where are the least popular layover locations for St. Louis to San Diego flights?

Accepted Answer

St. Louis to San Diego flights have a layover in Phoenix the least frequently.

Question 12

What are some popular things to do or see while on a layover in Denver?

Accepted Answer

The majority of Denver visitors spend their time at Coors Field, 16th Street Mall, and Civic Center Park. Travelers on a layover in Denver can visit Coors Field, 16th Street Mall, and Civic Center Park, by traveling 18.4 mi, 18.7 mi, and 18.7 mi, respectively after landing at Denver Intl. Travelers can rent a car at Denver Intl for an average daily rate of $43 to make sightseeing during their layover a little easier.

Question 13

What is the cheapest day to fly round-trip from St. Louis to San Diego?

Accepted Answer

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Diego. Check prices with Cheapflights to find a great deal for your trip.

Question 14

How far in advance should I book a flight from St. Louis to San Diego?

Accepted Answer

Travelers have found it’s best to book a flight 20 days in advance to save up to 110% 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 20 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 San Diego 1-2 weeks in advance for as low as $338, or $431 for flights within the next 24 hours.

Question 15

What is the cheapest month to fly from St. Louis to San Diego?

Accepted Answer

The best pricing can be found in the month of April. Prices to San Diego from St. Louis average $358. You can even find prices in April for less than $358, as users have found deals to San Diego from as low as $103. The month of December appears to be one of the more expensive times to travel to San Diego from St. Louis. Flying in the targeted month can save you up to 27%.

Question 16

When is the cheapest time to fly from St. Louis to San Diego (STL - SAN)?

Accepted Answer

Unlike at noon, when flights are generally more expensive, you can save up to 50% on flights from St. Louis to San Diego by exploring options for tickets in the evening.

Question 17

What airports do I use to fly from St. Louis to San Diego?

Accepted Answer

If you book a flight from St. Louis to San Diego, you will be flying from Lambert-St Louis to San Diego. Flights to San Diego (SAN) from Lambert-St Louis (STL) take 4h 00m for a nonstop flight. There is 1 flight from Lambert-St Louis to San Diego per day from 6 airlines.

Question 18

What does STL to SAN mean?

Accepted Answer

STL and SAN 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 SAN refers to a flight route from Lambert-St Louis Airport to San Diego Airport.

Question 19

Can I find deals for flights from St. Louis to San Diego that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your St. Louis to San Diego 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.

Question 20

Can I find deals on flights from St. Louis to San Diego with specific airlines?

Accepted Answer

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

Question 21

Can I find deals for flights from St. Louis to San Diego that include hotel bookings?

Accepted Answer

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

Question 22

How can I find direct flights from St. Louis to San Diego?

Accepted Answer

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

Question 23

Can I find deals for business class flights from St. Louis to San Diego?

Accepted Answer

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

Question 24

Can I find deals for flights from St. Louis to San Diego that allow pets onboard?

Accepted Answer

Many airlines flying from St. Louis to San Diego 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.

Question 25

Can I find deals on last-minute flights from St. Louis to San Diego?

Accepted Answer

Yes, you can often find last-minute deals on St. Louis to San Diego 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.

Question 26

How does Cheapflights help users find flights from St. Louis to San Diego?

Accepted Answer

When you search for this flight from St. Louis to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 27

Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Diego?

Accepted Answer

Cheapflights helps you find that perfect flight to San Diego from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 28

Can Cheapflights find flights from St. Louis to San Diego with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from St. Louis to San Diego with no change fees.

Question 29

Can Cheapflights notify me if prices for flights from St. Louis to San Diego become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from St. Louis to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$95	Average$271	FlexibilityNo cancel fee	On-time65%	Search Spirit Airlines flights
Frontier	Cheapest$98	Average$203	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
American Airlines	Cheapest$207	Average$433	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Delta	Cheapest$235	Average$369	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	Cheapest$286	Average$431	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Alaska Airlines	Cheapest$617	Average$718	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

15%of flight departures	Early morningMidnight to 6 am
55%of flight departures	Morning6 am to noon
30%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

Sunday	3daily flights
Monday	1daily flight
Tuesday	1daily flight
Wednesday	1daily flight
Thursday	1daily flight
Friday	1daily flight
Saturday	1daily flight

Popular in	December
Cheapest in	April
Round-trip from	$288
One-way from	$123

Cheap flights from St. Louis to San Diego (STL - SAN) from $76

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 5/25. 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.

The best prices from Lambert-St Louis to San Diego are usually found in April or September, booked 19 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from St. Louis to San Diego

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What is the cheapest day to fly round-trip from St. Louis to San Diego?

How far in advance should I book a flight from St. Louis to San Diego?

What is the cheapest month to fly from St. Louis to San Diego?

When is the cheapest time to fly from St. Louis to San Diego (STL - SAN)?

Cheap Frontier flights from St. Louis to San Diego

Take a peek at the cheapest Frontier flights we've detected traveling from St. Louis to San Diego. Come back soon if you're not finding the exact deal you're looking for.

Cheap Spirit Airlines flights from St. Louis to San Diego

To aid your search, here are some of the cheapest Spirit Airlines flights we've found from St. Louis to San Diego. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap St. Louis to San Diego flights in May & June 2024

Find cheap flight options from St. Louis to San Diego specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,634,509 searches. Prices were last updated on May 19, 2024.

These are some of the most attractive deals on flights from St. Louis to San Diego in 2024. Check back in a little while for more flight options.

St. Louis to San Diego 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Diego in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,634,509 searches. Data last updated May 19, 2024.

These are some of the most attractive deals on flights from St. Louis to San Diego in 2024. Check back in a little while for more flight options.

St. Louis to San Diego flights leaving soon

Have a look at some of the last-minute flights available departing from St. Louis to San Diego. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to San Diego from St. Louis

Users in need of a one-way flight from St. Louis to San Diego can choose from these deals. Users in need of a round-trip flight from St. Louis to San Diego instead should update the search form at the top of page.

Find flights from St. Louis to San Diego within your budget

When is the best time to book a flight from St. Louis to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Diego. Price data was last updated on May 10, 2024.

To ensure you get the cheapest price possible for a flight from St. Louis to San Diego, you should look to book at least 19 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

When is the cheapest time to fly from St. Louis to San Diego?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Diego. Price data was last updated on May 12, 2024.

Average price of flights to San Diego by month

Plan your trip from St. Louis to San Diego by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to San Diego is currently $102 while a round-trip flight costs $154. Price data was last updated on May 12, 2024.

Temperature and rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing San Diego

Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and Delta from St. Louis to San Diego to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airports do I use to fly from St. Louis to San Diego?

Can I find flights from St. Louis to San Diego for under $100 on Cheapflights?

Are there last-minute flights available from St. Louis to San Diego for under $200?

What are the cheapest airlines flying from St. Louis to San Diego round-trip?

What are the cheapest airlines to fly from St. Louis to San Diego one-way?

What are the most popular airlines that fly from St. Louis to San Diego?

What does STL to SAN mean?

Where are the most common layover locations when flying from St. Louis to San Diego?

What are some popular things to do or see while on a layover in Denver?

Where are the least popular layover locations for St. Louis to San Diego flights?

Can I find deals for flights from St. Louis to San Diego that include extra baggage allowance?

Can I find deals on flights from St. Louis to San Diego with specific airlines?

Can I find deals for flights from St. Louis to San Diego that include hotel bookings?

How can I find direct flights from St. Louis to San Diego?

Can I find deals for business class flights from St. Louis to San Diego?

Can I find deals for flights from St. Louis to San Diego that allow pets onboard?

Can I find deals on last-minute flights from St. Louis to San Diego?

How recently were the St. Louis to San Diego flight deals updated?

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Top 6 airlines flying from St. Louis to San Diego

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Search flights from St. Louis to San Diego by cabin class

Find flights from St. Louis to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from St. Louis to San Diego

Find hourly flight availability from St. Louis to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 19, 2024.

Weekly flight availability from St. Louis to San Diego

Explore weekly flight availability from St. Louis to San Diego. 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 May 19, 2024.

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Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to San Diego?

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Alternative routes for St. Louis to San Diego
See prices for flight routes from nearby airports that may be better suited for you.