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Incheon Intl

$529+ Cheap flights from St. Louis (STL) to Incheon Intl (ICN)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Lambert-St Louis to Incheon Intl are usually found in January or November, booked 6 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$815
(Trip.com)

One-way from

$529
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,866
Provider with most accurate pricing for Lambert-St Louis-Incheon Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Incheon Intl flights.
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From Lambert-St Louis to Incheon Intl
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One-way flight from Lambert-St Louis to Incheon Intl
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High demand for flights, 19% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from St. Louis to Incheon Intl

Cheapest flights from St. Louis to Incheon Intl
Explore the most affordable flight options available from St. Louis to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/248:00 amSTL - ICN
2 stops30h 40mUnited Airlines
Tue 12/3112:45 pmICN - STL
2 stops22h 41mUnited Airlines
Deal found 12/16$2,041
This Turkish Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:30 pmSTL - ICN
2 stops57h 50mMultiple Airlines
Mon 12/3012:10 amICN - STL
2 stops30h 37mMultiple Airlines
Deal found 12/16$2,269
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:04 amSTL - ICN
1 stop18h 26mDelta
Tue 12/317:30 pmICN - STL
1 stop17h 36mDelta
Deal found 12/16$2,287
This Priceline deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/217:07 pmSTL - ICN
1 stop29h 43mKorean Air
Mon 12/237:30 pmICN - STL
1 stop17h 36mKorean Air
Deal found 12/17$2,586
This CheapOair deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/216:40 pmSTL - ICN
2 stops32h 05mWestJet
Mon 12/2310:50 pmICN - STL
2 stops38h 16mWestJet
Deal found 12/17$2,913
This Finnair deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:45 pmSTL - ICN
2 stops31h 35mFinnair
Mon 1/611:00 pmICN - STL
2 stops38h 17mFinnair
Deal found 12/16$2,975
This Qatar Airways deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/222:00 pmSTL - ICN
2 stops36h 15mQatar Airways
Mon 12/3012:20 amICN - STL
2 stops38h 39mQatar Airways
Deal found 12/16$3,015
This Air Canada deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/253:50 pmSTL - ICN
2 stops32h 25mAir Canada
Sun 1/54:55 pmICN - STL
2 stops39h 56mAir Canada
Deal found 12/16$3,272

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 1/18

7:09 pm-8:30 pm

2 stops34h 21m

Incheon Intl

Sun 1/26

6:55 pm-9:16 am

2 stops29h 21m

$815

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 3/24

5:10 am-3:55 pm

1 stop20h 45m

Incheon Intl

Thu 4/24

5:25 pm-10:26 pm

1 stop19h 01m

$877

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 1/12

3:50 pm-3:15 pm

2 stops32h 25m

Incheon Intl

Wed 1/22

8:10 pm-3:06 pm

1 stop33h 56m

$1,196

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 3/12

11:39 am-12:20 pm

2 stops34h 41m

Incheon Intl

Sun 3/30

9:50 pm-6:19 pm

2 stops34h 29m

$1,393

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 5/12

6:19 pm-2:10 pm

2 stops29h 51m

Incheon Intl

Fri 5/23

10:10 am-11:11 pm

2 stops27h 01m

$1,501

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 5/10

3:44 pm-5:40 pm

2 stops35h 56m

Incheon Intl

Sat 5/24

9:30 am-2:18 pm

2 stops66h 48m

$1,537

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 4/6

5:18 pm-3:00 pm

2 stops31h 42m

Incheon Intl

Wed 4/23

4:50 pm-2:18 pm

3 stops35h 28m

$1,539

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 3/18

3:48 pm-5:15 pm

2 stops35h 27m

Incheon Intl

Tue 5/27

1:20 am-10:24 pm

2 stops35h 04m

$1,550

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 1/12

6:00 am-3:30 pm

1 stop18h 30m

Incheon Intl

Sun 1/19

2:30 pm-9:33 pm

2 stops22h 03m

$1,989

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 3/2

7:00 am-8:30 pm

2 stops46h 30m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 13 results
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Compare providers for flights from St. Louis to Incheon Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Incheon Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Incheon Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Incheon Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from St. Louis to Incheon Intl

Get recent, data-driven insights about flights from St. Louis to Incheon Intl including ideal travel times, pricing trends, and more.

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 December 13, 2024.

Booking 5 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.

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

Currently, October is the cheapest month in which you can book a flight from St. Louis to Incheon Intl Airport (average of $1,086). Flying from St. Louis to Incheon Intl Airport in June is currently the most expensive (average of $1,708). 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.

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

Find hourly flight availability from St. Louis to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Incheon Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

Rainfall in Incheon Intl by month

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

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.

Temperature in Incheon Intl by month

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

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 December 18, 2024.
Read reviews from past customers who have flown Air Canada, United Airlines and Qatar Airways 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.
Korean Air
8.4
Very good
1,018 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.4
Very good
1,018 reviews
Korean Air
8.4
Very good
1,018 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,604 reviews
Korean Air
8.4
Very good
1,018 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Finnair
7.7
Good
1,285 reviews
Korean Air
8.4
Very good
1,018 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Cathay Pacific
7.5
Good
841 reviews
Korean Air
8.4
Very good
1,018 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Qatar Airways
7.5
Good
3,798 reviews
Korean Air
8.4
Very good
1,018 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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.

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

    American Airlines, at $883, was found to be the cheapest airline from St. Louis to Incheon Intl Airport.Alternate airlines to your destination round-trip include Air Canada and Finnair. Users have found that American Airlines is 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from St. Louis to Incheon Intl Airport one-way?

    $756 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Korean Air, with prices starting from $1,216 and $1,587, respectively.

  • 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.

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

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Incheon Intl Airport (average of $1,086). Flying from St. Louis to Incheon Intl Airport in June is currently the most expensive (average of $1,708). 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.

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Alternative routes for St. Louis to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Incheon Intl flights
St. Louis to Gimpo Intl flights
Springfield to Incheon Intl flights

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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$870Average$1,236FlexibilityNo cancel feeOn-time67%
DeltaCheapest$902Average$1,603FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$902Average$1,249FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,011Average$1,487FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,469Average$1,883FlexibilityNo cancel feeOn-time81%
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