Cheap flights from St. Louis (STL) to Incheon Intl (ICN) from $779

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 7/10. 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 — ICN
Jun 14 — Jun 211

The best prices from Lambert-St Louis to Incheon Intl are usually found in January or February, booked 87 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from St. Louis to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Incheon Intl (ICN). 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 9, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$1,256

One-way from

$779
High demand for flights, 29% potential price rise
Best time to find cheap flights, 27% potential price drop
From Lambert-St Louis to Incheon Intl
One-way flight from Lambert-St Louis to Incheon Intl

What is the cheapest day to fly round-trip from St. Louis to Incheon Intl Airport?

Friday flights are found to be more expensive to fly from St. Louis to Incheon Intl Airport. 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 Incheon Intl Airport.

What is the cheapest month to fly from St. Louis to Incheon Intl Airport?

Our data shows that February tends to be the cheapest month to fly to Incheon Intl Airport from St. Louis. Users have commonly found prices around $1,782 for the month, but tickets can be as low as $1,355. Due to multiple factors, prepare for potentially higher prices in December.

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

A simple way to save on the total cost of your ticket is to fly from St. Louis to Incheon Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight in the afternoon.

Cheap St. Louis to Incheon Intl flights in June & July 2024

Find cheap flight options from St. Louis to Incheon Intl 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 9, 2024.
Check out some of the best flight deals from St. Louis to Seoul in 2024. For more flight deals, be sure to check back very soon.
Sun 7/146:09 pmSTL - ICN
2 stops31h 06mAmerican Airlines
Sun 8/185:25 pmICN - STL
2 stops32h 30mAmerican Airlines
Deal found 6/9$1,713
Sun 7/146:41 pmSTL - ICN
2 stops31h 04mMultiple Airlines
Sun 8/189:00 amICN - STL
3 stops41h 58mMultiple Airlines
Deal found 6/9$1,753
Sun 7/146:00 amSTL - ICN
1 stop18h 25mDelta
Sun 8/184:25 pmICN - STL
1 stop21h 14mDelta
Deal found 6/9$1,870
Sun 6/164:05 pmSTL - ICN
1 stop35h 25mMultiple Airlines
Thu 6/208:30 amICN - STL
2 stops26h 35mMultiple Airlines
Deal found 6/8$2,179
Sun 6/1611:15 amSTL - ICN
2 stops27h 05mUnited Airlines
Thu 6/2011:30 amICN - STL
2 stops19h 42mUnited Airlines
Deal found 6/8$2,244
Sun 6/168:55 amSTL - ICN
2 stops29h 25mUnited Airlines
Fri 6/214:50 pmICN - STL
2 stops19h 25mUnited Airlines
Deal found 6/9$2,294
Sun 7/145:22 amSTL - ICN
2 stops46h 13mQatar Airways
Sat 8/171:20 amICN - STL
2 stops36h 39mQatar Airways
Deal found 6/9$2,411
Sun 6/166:00 amSTL - ICN
1 stop18h 25mMultiple Airlines
Thu 6/204:25 pmICN - STL
1 stop18h 48mMultiple Airlines
Deal found 6/8$2,447
Sun 6/161:42 pmSTL - ICN
2 stops35h 33mAmerican Airlines
Fri 6/215:25 pmICN - STL
1 stop16h 59mAmerican Airlines
Deal found 6/9$2,462

St. Louis to Incheon Intl 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Incheon Intl 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 9, 2024.
Check out some of the best flight deals from St. Louis to Seoul in 2024. For more flight deals, be sure to check back very soon.
Wed 11/204:10 pmSTL - ICN
1 stop35h 15mAir Canada
Wed 12/48:10 pmICN - STL
1 stop34h 13mAir Canada
Deal found 6/9$1,239
Tue 8/2712:00 pmSTL - ICN
2 stops38h 05mAir Canada
Tue 9/106:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 6/8$1,244
Wed 11/2010:40 amSTL - ICN
1 stop40h 45mAir Canada
Wed 12/48:10 pmICN - STL
1 stop34h 13mAir Canada
Deal found 6/8$1,246
Wed 11/64:10 pmSTL - ICN
1 stop35h 15mAir Canada
Thu 11/218:10 pmICN - STL
1 stop28h 43mAir Canada
Deal found 6/8$1,250
Tue 8/275:00 amSTL - ICN
1 stop20h 15mAmerican Airlines
Tue 9/105:25 pmICN - STL
1 stop31h 17mAmerican Airlines
Deal found 6/8$1,275
Thu 9/128:00 amSTL - ICN
1 stop17h 15mAmerican Airlines
Mon 9/235:25 pmICN - STL
2 stops33h 32mAmerican Airlines
Deal found 6/8$1,286
Mon 8/2612:00 pmSTL - ICN
2 stops38h 05mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 6/8$1,292
Fri 11/84:10 pmSTL - ICN
2 stops33h 50mAir Canada
Thu 11/218:10 pmICN - STL
1 stop28h 43mAir Canada
Deal found 6/8$1,298
Tue 10/155:54 amSTL - ICN
1 stop19h 21mAmerican Airlines
Fri 10/255:25 pmICN - STL
1 stop18h 59mAmerican Airlines
Deal found 6/9$1,318

St. Louis to Incheon Intl flights leaving soon

Find last-minute flight options from St. Louis to Incheon Intl 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 9, 2024.
Book one of these great deals on flights from St. Louis to Seoul. Users should examine the flight details to ensure there are no surprises.
Sun 6/164:05 pmSTL - ICN
1 stop35h 25mMultiple Airlines
Thu 6/208:30 amICN - STL
2 stops26h 35mMultiple Airlines
Deal found 6/8$2,179
Sun 6/1611:15 amSTL - ICN
2 stops27h 05mUnited Airlines
Thu 6/2011:30 amICN - STL
2 stops19h 42mUnited Airlines
Deal found 6/8$2,244
Sun 6/168:55 amSTL - ICN
2 stops29h 25mUnited Airlines
Fri 6/214:50 pmICN - STL
2 stops19h 25mUnited Airlines
Deal found 6/9$2,294
Sun 6/166:00 amSTL - ICN
1 stop18h 25mMultiple Airlines
Thu 6/204:25 pmICN - STL
1 stop18h 48mMultiple Airlines
Deal found 6/8$2,447
Sun 6/161:42 pmSTL - ICN
2 stops35h 33mAmerican Airlines
Fri 6/215:25 pmICN - STL
1 stop16h 59mAmerican Airlines
Deal found 6/9$2,462
Sun 6/166:00 amSTL - ICN
1 stop18h 25mMultiple Airlines
Fri 6/2110:35 amICN - STL
1 stop16h 51mMultiple Airlines
Deal found 6/9$2,477
Sun 6/168:01 amSTL - ICN
2 stops43h 34mQatar Airways
Thu 6/201:20 amICN - STL
2 stops34h 42mQatar Airways
Deal found 6/9$2,739
Sun 6/164:48 pmSTL - ICN
2 stops34h 47mQatar Airways
Wed 6/191:20 amICN - STL
2 stops33h 36mQatar Airways
Deal found 6/8$3,191

One-way flights to Incheon Intl from St. Louis

Search for one-way flight options from St. Louis to Incheon Intl. 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 9, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to Seoul. Users can also find round-trip St. Louis to Seoul flights by using the search form above.
Wed 7/105:22 amSTL - ICN
1 stop19h 53mAmerican Airlines
Deal found 6/8$779
Fri 7/126:09 pmSTL - ICN
2 stops31h 06mAmerican Airlines
Deal found 6/8$829
Tue 7/24:05 pmSTL - ICN
2 stops34h 00mAir Canada
Deal found 6/8$894
Tue 7/28:01 amSTL - ICN
1 stop17h 14mAmerican Airlines
Deal found 6/8$1,042

Find flights from St. Louis to Incheon Intl within your budget

Customize your flight search to find flights from St. Louis to Incheon Intl 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 9, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,244 - $1,621

Route

Depart

Return

Price

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 8/27

2 stops38h 05m

Incheon Intl

Tue 9/10

2 stops35h 20m

$1,244

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 11/20

1 stop40h 45m

Incheon Intl

Wed 12/4

1 stop34h 13m

$1,246

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 8/27

1 stop20h 15m

Incheon Intl

Tue 9/10

1 stop31h 17m

$1,275

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/12

1 stop17h 15m

Incheon Intl

Mon 9/23

2 stops33h 32m

$1,286

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 11/7

1 stop18h 50m

Incheon Intl

Wed 11/20

1 stop18h 33m

$1,368

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Mon 11/11

2 stops34h 52m

Incheon Intl

Thu 11/21

2 stops27h 50m

$1,410

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Fri 8/30

1 stop17h 45m

Incheon Intl

Fri 9/6

1 stop19h 33m

$1,468

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 10/15

2 stops31h 39m

Incheon Intl

Thu 10/24

2 stops36h 38m

$1,565

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Fri 11/8

2 stops34h 52m

Incheon Intl

Wed 11/20

2 stops47h 00m

$1,621

Flights are sorted by cheapest first

Deals found on 6/8

How far ahead should I book a flight from St. Louis to Incheon Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Incheon Intl. Price data was last updated on May 31, 2024.
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Incheon Intl Airport. 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 Incheon Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Incheon Intl. 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 Incheon Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday afternoons 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 Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl by month

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

SEL

Temperature

35.6 - 77 °F

If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated June 9, 2024.
Read reviews from past customers who have flown Air Canada, American Airlines and Delta from St. Louis to Seoul. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.5
Very good
1,129 reviews

Crew

8.8

Comfort

8.3

Boarding

8.6

Entertainment

8.2

Overall

8.5

Food

8.2

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

8.5
Very good
1,129 reviews
8.5
Very good
1,129 reviews

Crew

8.8

Comfort

8.3

Boarding

8.6

Entertainment

8.2

Overall

8.5

Food

8.2

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

8.3
Very good
1,461 reviews
8.5
Very good
1,129 reviews

Crew

8.8

Comfort

8.3

Boarding

8.6

Entertainment

8.2

Overall

8.5

Food

8.2

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

8.0
Very good
10,310 reviews
8.5
Very good
1,129 reviews

Crew

8.8

Comfort

8.3

Boarding

8.6

Entertainment

8.2

Overall

8.5

Food

8.2

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

7.8
Good
1,034 reviews
8.5
Very good
1,129 reviews

Crew

8.8

Comfort

8.3

Boarding

8.6

Entertainment

8.2

Overall

8.5

Food

8.2

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

7.7
Good
4,307 reviews
8.5
Very good
1,129 reviews

Crew

8.8

Comfort

8.3

Boarding

8.6

Entertainment

8.2

Overall

8.5

Food

8.2

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Incheon Intl. 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 Incheon Intl?

    For a flight from St. Louis to Incheon Intl, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Incheon Intl per day. 5 airlines have flights to Incheon Intl from Lambert-St Louis on a regular basis.

  • Can I find flights from St. Louis to Incheon Intl Airport for under $1,300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Incheon Intl Airport for under $1,300. The cheapest flight booked recently is on Air Canada for just $1,244, but on average you can expect to pay $1,338.

  • Are there last-minute flights available from St. Louis to Incheon Intl Airport for under $2,200?

    There are currently 8+ open flights from St. Louis to Incheon Intl Airport within the next 7 days for less than $2,200.

  • What are the cheapest airlines flying from St. Louis to Incheon Intl Airport round-trip?

    Air Canada, at $1,244, was found to be the cheapest airline from St. Louis to Incheon Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Delta. Users have found that Air Canada is 29% cheaper than the other options available to this destination.

  • What does STL to ICN mean?

    STL and ICN 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 ICN refers to a flight route from Lambert-St Louis Airport to Incheon Intl Airport.

  • Can I find deals for flights from St. Louis to Incheon Intl that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Incheon Intl 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 Incheon Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Incheon Intl 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 Incheon Intl that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Incheon Intl?

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

  • Can I find deals for business class flights from St. Louis to Incheon Intl?

    Yes. Cheapflights offers flight deals from St. Louis to Incheon Intl 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 Incheon Intl that allow pets onboard?

    Many airlines flying from St. Louis to Incheon Intl 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 Incheon Intl?

    Yes, you can often find last-minute deals on St. Louis to Incheon Intl 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 Incheon Intl Airport flight deals updated?

    The St. Louis to Incheon Intl Airport 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 Incheon Intl Airport?

  • What is the cheapest month to book a flight from St. Louis to Incheon Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Incheon Intl Airport (average of $1,218). Flying from St. Louis to Incheon Intl Airport in June is currently the most expensive (average of $1,765). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Top 5 airlines flying from St. Louis to Incheon Intl

Discover the top 5 airlines that operate flights from St. Louis to Incheon Intl. 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 9, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,212Average$1,344FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,305Average$1,737FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,424Average$1,664FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,511Average$1,747FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,664Average$1,996FlexibilityNo cancel feeOn-time81%

Search flights from St. Louis to Incheon Intl by cabin class

Find flights from St. Louis to Incheon Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.