Cheap Finnair flights St. Louis (STL) to Seoul (ICN)

Flights from St. Louis (STL) to Seoul (ICN)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Incheon Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Asiana Airlines, Cathay Pacific, Delta, Hawaiian Airlines, Korean Air, United
Popular airline
Air Canada
Distance
6674 mi

Frequently asked questions

How much is a Finnair flight from Lambert-St. Louis Intl. Airport (STL) to Incheon Intl. Airport (ICN)?
Landing cheap one-way Finnair flights from STL to ICN on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Or check out our affordable return fares for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from STL to ICN with Finnair?
Finnair flights to Seoul tend to be more affordable in the quieter months of January and February. Whether you need a round-trip or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from Lambert-St. Louis Intl. Airport (STL) to Incheon Intl. Airport (ICN) with Finnair?
To grab cheap flights from STL to ICN with Finnair, begin searching about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Finnair fly nonstop from Lambert-St. Louis Intl. Airport (STL) to Incheon Intl. Airport (ICN)?
To find out if there's a direct journey from STL to ICN with Finnair or any other carriers, check the "Nonstop" box when searching for tickets.
What is the earliest Finnair flight from STL to ICN?
Browse Finnair's earliest flights from STL to ICN by selecting the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Finnair fly into in Seoul?
Finnair flights from Lambert-St. Louis Intl. Airport (STL) to Seoul come in to land at Incheon Intl. Airport (ICN). This is the main gateway here.
What kind of luggage can I take on a Finnair flight from Lambert-St. Louis Intl. Airport (STL) to Incheon Intl. Airport (ICN)?
For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag in the cabin when flying standard economy from STL to ICN with Finnair. This carry-on has to weigh less than 22 lb and be no larger than 9 inches x 15 inches x 15 inches. Exceeding these limits can mean additional charges, so read Finnair's baggage allowance guidelines before packing your suitcase.
Why fly with Finnair from STL to ICN?
Finnair makes flying from STL to ICN more enjoyable with a 4-star airline rating and a rewarding loyalty program. You could even start collecting points with Finnair Plus. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Finnair flight from Lambert-St. Louis Intl. Airport (STL) to Incheon Intl. Airport (ICN)?
Changes are often free within 24 hours of booking, but your airline may charge a fee after that. For more details about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to change your plans without additional costs, apply the "Changes included" and "No cancel fee" filters when organizing your next break.

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*Available to One Key members.