Cheap flights from St. Louis to Incheon Intl Airport from $478
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Incheon Intl Airport departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Seoul
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from St. Louis to Seoul
All round-trip flight deals to Seoul
American Airlines flights from St. Louis to Incheon Intl Airport
Our best American Airlines deals on St. Louis to Incheon Intl Airport flight tickets
Delta flights from St. Louis to Incheon Intl Airport
Our best Delta deals on St. Louis to Incheon Intl Airport flight tickets
See travel insights to Seoul from
How to get the cheapest flight ticket from St. Louis to Incheon Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Incheon Intl Airport?
The cheapest month to fly to Incheon Intl Airport from St. Louis is in January. Flight prices, which tend to average around $1,180, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of January, then departing from St. Louis during the month November is also very affordable. Most momondo users find prices during this month for around $1,266.
What is the cheapest day to depart on your flight to Incheon Intl Airport?
The cheapest day to depart from St. Louis to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,462. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,782. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.
What is the cheapest time of day to depart on your flight to Incheon Intl Airport?
In the afternoon is the cheapest time of day to fly from St. Louis to Incheon Intl Airport when you can find flight prices for as low as $1,485. Flying to Incheon Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,718 on average. Flights to Incheon Intl Airport from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Incheon Intl Airport?
In general, most travelers find the cheapest time to book a flight to Incheon Intl Airport is about 6 days prior to their departure date when tickets on average are $1,600. Keep in mind that you might also find cheap flights to Incheon Intl Airport outside of this time window. In fact, momondo users recently found flights from St. Louis to Incheon Intl Airport for $870.
When to book flights from St. Louis to Incheon Intl Airport
Cheap St. Louis to Incheon Intl Airport (STL to ICN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Incheon Intl Airport
How far is Lambert-St Louis to Incheon Intl by plane?
The straight-line distance from Lambert-St Louis to Incheon Intl is 6682.0 mi. By plane, this route typically takes 17h 50m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Incheon Intl Airport?
Prices for flights from Lambert-St Louis Airport to Incheon Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Incheon Intl Airport?
The number of operators available for flights from Lambert-St Louis Airport to Incheon Intl Airport is 5 as of December 2024.
How old do you have to be to fly from Lambert-St Louis Airport to Incheon Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Incheon Intl Airport.
What documentation or ID do you need to fly to Incheon Intl Airport?
The travel and health documents required for your trip to Incheon Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Incheon Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Incheon Intl Airport?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Incheon Intl Airport is Delta, representing 45% of all bookings. The subsequent popular airlines are American Airlines at 18%, Korean Air at 16%, and United Airlines at 13%.
Best airlines flying from St. Louis to Incheon Intl Airport
Compare and see reviews for airlines that fly from St. Louis to Incheon Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $870 | Free Cancellation | Rating 7.0 8,420 reviews | |||
| PriceFrom $902 | Free Cancellation | Rating 8.0 8,580 reviews | |||
| PriceFrom $902 | Free Cancellation | Rating 7.4 9,009 reviews | |||
| PriceFrom $1,011 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $1,469 | Free Cancellation | Rating 8.4 1,024 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Seoul?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Seoul. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Seoul with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for St. Louis to Seoul flights to just show those with flexible booking policies.
How can momondo help me find flights from St. Louis to Seoul?
Once you have performed a search for St. Louis to Seoul flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from St. Louis to Seoul right now. Can momondo alert me if prices change?
If you are not ready to book a flight from St. Louis to Seoul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seoul and let you know when they change.