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Cheap flights from St. Louis to Seoul from $477

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 Seoul departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Seoul

Cheap round-trip flights

American Airlines Logo
7:59 pm - 3:30 pmSTL-ICN
29h 31m2 stops
American Airlines Logo
5:25 pm - 8:05 amICN-STL
28h 40m2 stops
$844American Airlines
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Mon, Sep 1 - Sat, Sep 20
United Airlines Logo
5:49 pm - 3:00 pmSTL-ICN
31h 11m1 stop
United Airlines Logo
11:30 am - 4:53 pmICN-STL
19h 23m1 stop
$845United Airlines
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Mon, Sep 1 - Sat, Sep 20
United Airlines Logo
5:30 pm - 4:20 amSTL-ICN
20h 50m2 stops
United Airlines Logo
11:30 am - 4:33 pmICN-STL
19h 03m2 stops
$849United Airlines
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Mon, Sep 1 - Sat, Sep 20
Delta Logo
8:46 am - 5:20 pmSTL-ICN
18h 34m1 stop
Delta Logo
7:40 pm - 12:38 amICN-STL
18h 58m1 stop
$856Delta
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Mon, Sep 1 - Tue, Sep 30
Delta Logo
6:00 am - 4:25 pmSTL-ICN
20h 25m2 stops
Delta Logo
7:40 pm - 12:38 amICN-STL
18h 58m1 stop
$861Delta
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Mon, Sep 1 - Tue, Sep 30
Japan Airlines Logo
7:23 am - 10:45 amSTL-GMP
37h 22m2 stops
Japan Airlines Logo
7:55 am - 8:32 pmGMP-STL
26h 37m2 stops
$872Japan Airlines
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Sun, Sep 14 - Sat, Sep 20
Alaska Airlines Logo
6:00 am - 6:35 pmSTL-ICN
22h 35m1 stop
Alaska Airlines Logo
8:35 pm - 3:05 pmICN-STL
32h 30m1 stop
$874Alaska Airlines
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Sat, Sep 27 - Sun, Oct 26
Japan Airlines Logo
6:45 am - 9:50 pmSTL-GMP
25h 05m2 stops
Japan Airlines Logo
7:55 am - 1:12 pmGMP-STL
19h 17m2 stops
$879Japan Airlines
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Fri, Aug 22 - Fri, Aug 29
Air Canada Logo
4:05 pm - 4:05 pmSTL-ICN
34h 00m2 stops
Air Canada Logo
6:00 pm - 3:18 pmICN-STL
35h 18m2 stops
$1,036Air Canada
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Sun, Sep 14 - Sun, Sep 21
Air Canada Logo
4:05 pm - 5:10 pmSTL-ICN
34h 05m2 stops
Air Canada Logo
6:55 pm - 3:29 pmICN-STL
35h 34m2 stops
$1,044Air Canada
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Mon, Dec 8 - Mon, Jan 19

Delta flights from St. Louis to Seoul

Our best Delta deals on St. Louis to Seoul flight tickets
Delta
Sep 1
STL8:46 amLambert-St Louis
18h 34m
1 stop
ICN5:20 pmIncheon Intl
Sep 30
ICN7:40 pmIncheon Intl
18h 58m
1 stop
STL12:38 amLambert-St Louis
$856
Find similar
Delta
Sep 1
STL6:00 amLambert-St Louis
20h 25m
2 stops
ICN4:25 pmIncheon Intl
Sep 30
ICN7:40 pmIncheon Intl
18h 58m
1 stop
STL12:38 amLambert-St Louis
$861
Find similar
Delta
Sep 12
STL6:00 amLambert-St Louis
21h 20m
1 stop
ICN5:20 pmIncheon Intl
Oct 25
ICN6:50 pmIncheon Intl
17h 09m
1 stop
STL9:59 pmLambert-St Louis
$862
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American Airlines flights from St. Louis to Seoul

Our best American Airlines deals on St. Louis to Seoul flight tickets
American Airlines
Sep 1
STL7:59 pmLambert-St Louis
29h 31m
2 stops
ICN3:30 pmIncheon Intl
Sep 20
ICN5:25 pmIncheon Intl
28h 40m
2 stops
STL8:05 amLambert-St Louis
$844
Find similar
American Airlines
Sep 1
STL7:41 pmLambert-St Louis
29h 49m
1 stop
ICN3:30 pmIncheon Intl
Sep 20
ICN5:25 pmIncheon Intl
35h 43m
1 stop
STL3:08 pmLambert-St Louis
$853
Find similar
American Airlines
Sep 14
STL5:18 amLambert-St Louis
20h 12m
1 stop
ICN3:30 pmIncheon Intl
Sep 20
ICN5:25 pmIncheon Intl
16h 50m
1 stop
STL8:15 pmLambert-St Louis
$857
Find similar

See travel insights to Seoul from

How to get the cheapest flight ticket from St. Louis to Seoul

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 typical price of a round-trip flight between St. Louis and Seoul?

What is the cheapest month to fly to Seoul?

The month of December is another great option to travel to Seoul, with average flight prices from St. Louis averaging around $1,045.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Tuesday is the cheapest day to fly to Seoul from St. Louis. The lowest ticket price found for a Tuesday departure recently was $1,367. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Sunday, with ticket prices averaging around $1,713.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,290 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,673 per ticket.

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,289 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from St. Louis for as low as $1,068 on momondo.

When to book flights from St. Louis to Seoul

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Seoul according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Seoul (STL to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Seoul

Best Price Found

$477

Fastest flight time

18h 14m

Direct flights

None

Airports in Seoul

2 airports
The best one-way flight to Seoul from St. Louis in the past 72 hours is $477. The best round-trip flight deal from St. Louis to Seoul found on momondo in the last 72 hours is $844.
The fastest flight from St. Louis to Seoul takes 18h 14m
There are no direct flights from St. Louis to Seoul. Popular non-direct routes for this connection are Lambert-St Louis Airport - Seoul Gimpo Intl Airport and Lambert-St Louis Airport - Incheon Intl Airport.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)
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  • How far is Lambert-St Louis to Seoul by plane?

    The distance between Lambert-St Louis and Seoul is about 6661.9 mi. 18h 14m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Seoul?

    Prices for flights from Lambert-St Louis Airport to Seoul are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Seoul?

  • How old do you have to be to fly from Lambert-St Louis Airport to Seoul?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The required travel and health documents for your Seoul trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seoul. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from St. Louis to Seoul?

Best airlines flying from St. Louis to Seoul

Compare and see reviews for airlines that fly from St. Louis to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $799Free CancellationRating
7.1
9,692 reviews
Search Air Canada flights
DeltaPriceFrom $902Free CancellationRating
8.0
7,952 reviews
Search Delta flights
United AirlinesPriceFrom $902Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
American AirlinesPriceFrom $996Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Korean AirPriceFrom $1,080Free CancellationRating
8.4
1,105 reviews
Search Korean Air flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Seoul?

Finding the right flight to Seoul from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seoul quick and easy, saving you time and money.

Can I find flights from St. Louis to Seoul with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seoul from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Seoul?

momondo provides multiple filters to help you find the best flight to Seoul from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Seoul right now. Can momondo alert me if prices change?

Price alerts on flights to Seoul from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport