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Incheon Intl

$387+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
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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 Thursday 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 November 14, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

January

Round-trip from

$875
(Justfly.com)

One-way from

$387
(Kiwi.com)
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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High demand for flights, 35% potential price rise
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Best time to find cheap flights, 26% potential price drop
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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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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 November 14, 2024.

This Delta deal was found by Cheapflights users on 11/14. 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.
Thu 11/146:30 amSTL - ICN
1 stop19h 00mDelta
Mon 11/259:35 amICN - STL
1 stop22h 40mDelta
Deal found 11/14$902
This United Airlines deal was found by Cheapflights users on 11/14. 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.
Thu 11/147:00 pmSTL - ICN
1 stop19h 40mUnited Airlines
Mon 11/2512:45 pmICN - STL
2 stops18h 47mUnited Airlines
Deal found 11/14$907
This Gotogate deal was found by Cheapflights users on 11/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/233:50 pmSTL - ICN
2 stops33h 55mAir Canada
Sun 12/156:20 pmICN - STL
2 stops35h 46mAir Canada
Deal found 11/14$1,224
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:46 pmSTL - ICN
2 stops30h 24mMultiple Airlines
Fri 1/101:35 pmICN - STL
1 stop20h 59mMultiple Airlines
Deal found 11/13$1,426
This Korean Air deal was found by Cheapflights users on 11/14. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/236:00 amSTL - ICN
1 stop18h 30mKorean Air
Sun 12/155:50 pmICN - STL
1 stop18h 14mKorean Air
Deal found 11/14$1,576
This oojo deal was found by Cheapflights users on 11/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:30 amSTL - ICN
2 stops35h 35mTurkish Airlines
Wed 12/1112:10 amICN - STL
2 stops29h 15mTurkish Airlines
Deal found 11/14$1,842
This KLM deal was found by Cheapflights users on 11/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/67:20 amSTL - ICN
2 stops42h 30mKLM
Thu 1/911:05 pmICN - STL
2 stops36h 51mKLM
Deal found 11/13$1,850
This Cathay Pacific deal was found by Cheapflights users on 11/13. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:25 amSTL - ICN
2 stops40h 30mCathay Pacific
Wed 1/87:35 pmICN - STL
2 stops35h 45mCathay Pacific
Deal found 11/13$2,067
This Qatar Airways deal was found by Cheapflights users on 11/14. 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.
Fri 11/221:45 pmSTL - ICN
2 stops36h 30mQatar Airways
Sat 12/1412:20 amICN - STL
2 stops38h 39mQatar Airways
Deal found 11/14$2,679

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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 2/2

3:50 pm-3:15 pm

2 stops32h 25m

Incheon Intl

Sat 2/8

4:55 pm-3:06 pm

2 stops37h 11m

$864

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 3/6

3:32 pm-5:40 am

2 stops23h 08m

Incheon Intl

Thu 3/13

11:45 am-10:24 pm

1 stop24h 39m

$902

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 12/5

6:35 pm-4:15 pm

2 stops30h 40m

Incheon Intl

Thu 12/12

7:30 pm-11:43 pm

2 stops19h 13m

$907

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 3/1

7:20 am-5:45 pm

1 stop19h 25m

Incheon Intl

Sat 3/8

9:40 am-11:39 am

1 stop16h 59m

$992

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 4/5

6:30 am-3:20 pm

1 stop18h 50m

Incheon Intl

Tue 4/22

4:25 pm-8:42 pm

1 stop18h 17m

$1,104

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 3/1

10:18 am-6:20 pm

2 stops41h 02m

Incheon Intl

Fri 3/7

12:10 am-2:36 pm

2 stops29h 26m

$1,289

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 4/23

7:51 pm-5:35 pm

2 stops31h 44m

Incheon Intl

Tue 5/20

1:20 am-10:24 pm

2 stops35h 04m

$1,529

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 12/6

7:20 am-4:50 pm

2 stops42h 30m

Incheon Intl

Thu 1/9

11:05 pm-8:56 pm

2 stops36h 51m

$1,850

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 12/6

6:25 am-1:55 pm

2 stops40h 30m

Incheon Intl

Wed 1/8

7:35 pm-4:20 pm

2 stops35h 45m

$2,067

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 12/17

11:20 am-9:05 am

2 stops54h 45m

$1,060

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

Showing 1-10 of 15 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Incheon Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 November 8, 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 $1,102). 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 November 14, 2024.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Incheon Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight in the morning.

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 November 14, 2024.
Read reviews from past customers who have flown Air Canada, Korean Air and United Airlines 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
8.5
Very good
1,036 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Korean Air
8.5
Very good
1,036 reviews
Korean Air
8.5
Very good
1,036 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Delta
8.0
Very good
8,788 reviews
Korean Air
8.5
Very good
1,036 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

KLM
7.8
Good
1,346 reviews
Korean Air
8.5
Very good
1,036 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Cathay Pacific
7.6
Good
874 reviews
Korean Air
8.5
Very good
1,036 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Qatar Airways
7.5
Good
3,861 reviews
Korean Air
8.5
Very good
1,036 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

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?

    Air Canada, at $875, was found to be the cheapest airline from St. Louis to Incheon Intl Airport.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that Air Canada is 45% 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?

    $506 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and Korean Air, with prices starting from $525 and $606, 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 $1,102). 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.

See more FAQs

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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 2,752,363 searches. Data last updated November 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$870Average$1,236FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$902Average$1,112FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,011Average$1,645FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,168Average$1,632FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,469Average$1,908FlexibilityNo cancel feeOn-time81%
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