$528+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from St. Louis to Incheon Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Lambert-St Louis to Incheon Intl are usually found in January or February, booked 10 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 March 14, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,225 (Air Canada) |
One-way from | $528 (Air Canada) |
Popular in | December |
Cheapest in | January |
Average price | $1,202 |
Find flight deals from St. Louis to Incheon Intl
Cheapest flights from St. Louis to Incheon IntlExplore 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 March 14, 2025.
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 March 14, 2025.
This Air Canada deal was found by Cheapflights users on 3/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Travelocity deal was found by Cheapflights users on 3/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 3/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 3/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 3/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Fareboom deal was found by Cheapflights users on 3/13. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ovago deal was found by Cheapflights users on 3/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This WestJet deal was found by Cheapflights users on 3/13. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KLM deal was found by Cheapflights users on 3/13. 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.
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 March 14, 2025.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Tue 5/13
1:30 pm-4:05 pm
2 stops36h 35m
Incheon Intl
Wed 5/21
5:45 pm-12:36 pm
2 stops32h 51m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 4/5
5:00 pm-5:20 pm
1 stop34h 20m
Incheon Intl
Fri 4/11
7:20 pm-11:04 pm
2 stops17h 44m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 4/12
8:25 am-3:00 pm
2 stops40h 35m
Incheon Intl
Sat 4/19
4:50 pm-9:56 am
2 stops31h 06m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Mon 5/12
2:30 pm-12:30 pm
3 stops32h 00m
Incheon Intl
Sun 5/25
8:45 pm-12:36 pm
2 stops29h 51m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 4/12
5:27 pm-3:30 pm
1 stop32h 03m
Incheon Intl
Sat 4/19
5:25 pm-7:29 pm
1 stop16h 04m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 7/3
6:30 am-6:45 pm
2 stops22h 15m
Incheon Intl
Sun 7/13
8:45 pm-9:31 pm
2 stops38h 46m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Fri 7/4
3:24 pm-5:05 pm
2 stops59h 41m
Incheon Intl
Tue 7/15
1:20 am-11:59 pm
2 stops36h 39m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 5/11
7:06 pm-4:25 pm
2 stops31h 19m
Incheon Intl
Sun 6/1
10:25 pm-5:09 pm
2 stops32h 44m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Fri 4/18
3:30 pm-5:30 pm
1 stop36h 00m
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Fri 4/18
6:51 pm-3:55 pm
3 stops55h 04m
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
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 March 7, 2025.
Booking 9 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, February is the cheapest month in which you can book a flight from St. Louis to Incheon Intl Airport (average of $1,002). Flying from St. Louis to Incheon Intl Airport in June is currently the most expensive (average of $1,671). 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 March 14, 2025.
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 March 14, 2025.
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Boarding
Entertainment
Food
Crew
Comfort
Reviews
Aaron,Oct 2024
LAX - LHR
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.
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Alternative routes for St. Louis to Incheon Intl
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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 March 14, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$799 | Average$1,021 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$902 | Average$1,669 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$902 | Average$1,380 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$996 | Average$1,551 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,080 | Average$1,885 | FlexibilityNo cancel fee | On-time81% |