Skip to main content
Beginning of main content

Cheap Flights from St. Louis to Seoul $859.56

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia’s Price Guarantee
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheapest Flights from St. Louis to Seoul (STL to ICN)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Seoul (STL to ICN)

Question : In the next four weeks, what day should you book your trip?
Answer : February 2nd offers bookings (as of January 16th) that are 13% below the average price for this route. Saving now means you'll have more cash to spend on your trip.

Question : How long are most people's visits to Seoul when they fly in from Saint Louis?
Answer : Of course you're not most people, but if you were, you'd stay roughly 15 days.

Question : Can you cut down on flight costs by changing the day of the week you travel to Seoul?
Answer : The lowest-cost day to fly in February is Monday. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.

Question : Which airline is giving the best deals for round-trip flights from Lambert-St. Louis International Airport (STL) to Incheon International Airport (ICN)?
Answer : American Airlines is your best bet for finding that coveted low fare.