How do I get Price Alerts for flights from St. Louis to Busan?

Confirm your travel details to search for the latest offers for flights from St. Louis to Busan . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from St. Louis to Busan with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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

Prices for flights from Lambert-St Louis Airport to Busan Gimhae Airport are refreshed on a daily basis.

How old do you have to be to fly from Lambert-St Louis Airport to Busan Gimhae Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Busan Gimhae Airport.

What documentation or ID do you need to fly to Busan Gimhae Airport?

The travel and health documents you'll need for your trip to Busan Gimhae Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Busan Gimhae Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,251 Cheap Flights from St. Louis to Busan in 2026

Find the cheapest flights from St. Louis to Busan

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:29 am - 9:30 amSTL Lambert-St Louis-PUS Busan Gimhae

37h 01m2 stops Seattle/Tacoma Intl Incheon Intl

8:00 am - 2:11 pmPUS Busan Gimhae-STL Lambert-St Louis

44h 11m2 stops Incheon Intl Seattle/Tacoma Intl

$1,251Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

6:29 am - 9:35 pmSTL Lambert-St Louis-PUS Busan Gimhae

25h 06m2 stops Seattle/Tacoma Intl Tokyo Narita

6:30 pm - 11:59 pmPUS Busan Gimhae-STL Lambert-St Louis

43h 29m2 stops Incheon Intl Seattle/Tacoma Intl

$1,269Multiple Airlines

Sun, Sep 20 - Sun, Sep 27

7:36 pm - 7:00 pmSTL Lambert-St Louis-PUS Busan Gimhae

33h 24m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

12:15 pm - 11:59 pmPUS Busan Gimhae-STL Lambert-St Louis

49h 44m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,271China Airlines

Sun, Sep 6 - Sun, Sep 13

7:00 am - 8:45 pmSTL Lambert-St Louis-PUS Busan Gimhae

23h 45m2 stops Atlanta Hartsfield-Jackson Incheon Intl

10:40 am - 11:21 pmPUS Busan Gimhae-STL Lambert-St Louis

26h 41m2 stops Incheon Intl Minneapolis St Paul

$1,840Korean Air

Sun, Oct 18 - Thu, Oct 22

3:30 pm - 11:45 amSTL Lambert-St Louis-PUS Busan Gimhae

30h 15m3 stops Frankfurt am Main Istanbul Beijing Capital

7:30 am - 10:59 pmPUS Busan Gimhae-STL Lambert-St Louis

29h 29m3 stops Tokyo Narita Toronto Pearson Intl Chicago O'Hare Intl

$1,913Multiple Airlines

Sun, Sep 20 - Sun, Sep 27

12:10 pm - 11:35 amSTL Lambert-St Louis-PUS Busan Gimhae

33h 25m3 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle Shanghai Pu Dong

7:50 am - 8:20 pmPUS Busan Gimhae-STL Lambert-St Louis

26h 30m2 stops Tokyo Narita Toronto Pearson Intl

$2,011Multiple Airlines

Sun, Sep 6 - Sun, Sep 13

8:55 am - 10:20 amSTL Lambert-St Louis-PUS Busan Gimhae

35h 25m3 stops Toronto Pearson Intl Incheon Intl Shenyang

7:30 am - 8:20 pmPUS Busan Gimhae-STL Lambert-St Louis

26h 50m2 stops Tokyo Narita Toronto Pearson Intl

$2,103Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

8:55 am - 10:20 amSTL Lambert-St Louis-PUS Busan Gimhae

35h 25m3 stops Toronto Pearson Intl Incheon Intl Shenyang

7:30 am - 10:59 pmPUS Busan Gimhae-STL Lambert-St Louis

29h 29m3 stops Tokyo Narita Toronto Pearson Intl Chicago O'Hare Intl

$2,118Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

8:55 am - 9:35 pmSTL Lambert-St Louis-PUS Busan Gimhae

22h 40m2 stops Toronto Pearson Intl Tokyo Narita

7:30 am - 10:59 pmPUS Busan Gimhae-STL Lambert-St Louis

29h 29m3 stops Tokyo Narita Toronto Pearson Intl Chicago O'Hare Intl

$2,631Multiple Airlines

Sun, Sep 20 - Sun, Sep 27

7:36 pm - 9:30 amSTL Lambert-St Louis-PUS Busan Gimhae

23h 54m3 stops Seattle/Tacoma Intl Vancouver Intl Taipei City Taiwan Taoyuan Intl

12:35 pm - 11:31 pmPUS Busan Gimhae-STL Lambert-St Louis

24h 56m3 stops Shanghai Pu Dong Vancouver Intl Denver Intl

$5,366Multiple Airlines

Sun, Sep 6 - Sun, Sep 13

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Wed 9/23

6:29 am-9:30 am

2 stops37h 01m

Busan Gimhae

Wed 9/30

8:00 am-2:11 pm

2 stops44h 11m

$1,251

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 9/20

6:29 am-9:35 pm

2 stops25h 06m

Busan Gimhae

Sun 9/27

6:30 pm-11:59 pm

2 stops43h 29m

$1,269

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 9/6

7:36 pm-7:00 pm

2 stops33h 24m

Busan Gimhae

Sun 9/13

12:15 pm-11:59 pm

2 stops49h 44m

$1,271

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 10/18

7:00 am-8:45 pm

2 stops23h 45m

Busan Gimhae

Thu 10/22

10:40 am-11:21 pm

2 stops26h 41m

$1,840

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 9/20

3:30 pm-11:45 am

3 stops30h 15m

Busan Gimhae

Sun 9/27

7:30 am-10:59 pm

3 stops29h 29m

$1,913

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 9/6

12:10 pm-11:35 am

3 stops33h 25m

Busan Gimhae

Sun 9/13

7:50 am-8:20 pm

2 stops26h 30m

$2,011

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Wed 9/23

8:55 am-10:20 am

3 stops35h 25m

Busan Gimhae

Wed 9/30

7:30 am-8:20 pm

2 stops26h 50m

$2,103

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Wed 9/23

8:55 am-10:20 am

3 stops35h 25m

Busan Gimhae

Wed 9/30

7:30 am-10:59 pm

3 stops29h 29m

$2,118

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 9/20

8:55 am-9:35 pm

2 stops22h 40m

Busan Gimhae

Sun 9/27

7:30 am-10:59 pm

3 stops29h 29m

$2,631

Quickest round-trip

St. LouisBusan

STL Lambert-St Louis - PUS Busan Gimhae

STLPUS

Lambert-St Louis

Sun 9/6

7:36 pm-9:30 am

3 stops23h 54m

Busan Gimhae

Sun 9/13

12:35 pm-11:31 pm

3 stops24h 56m

$5,366

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Busan

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

Estimated round-trip price

Cheap St. Louis to Busan (STL to PUS) flight deals and tips

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

Fastest flight time	23h 45m
Direct flights	None

The fastest flight from St. Louis to Busan takes 23h 45m

There are no direct flights from St. Louis to Busan. There are no popular flight routes from St. Louis to Busan.

Search flight deals

Frequently asked questions about flying from St. Louis to Busan

How far is Lambert-St Louis to Busan Gimhae by plane?
Lambert-St Louis and Busan Gimhae are 6754.0 mi apart from one another. By plane, this route typically takes 23h 45m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Busan Gimhae Airport?
Prices for flights from Lambert-St Louis Airport to Busan Gimhae Airport are refreshed on a daily basis.
How old do you have to be to fly from Lambert-St Louis Airport to Busan Gimhae Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Busan Gimhae Airport.
What documentation or ID do you need to fly to Busan Gimhae Airport?
The travel and health documents you'll need for your trip to Busan Gimhae Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Busan Gimhae Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from St. Louis to Busan

How do I get Price Alerts for flights from St. Louis to Busan?
Confirm your travel details to search for the latest offers for flights from St. Louis to Busan. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from St. Louis to Busan with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

It is quick and easy to find St. Louis to Busan flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Busan that suits you.

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

Yes. momondo enables you to select and highlight flights to Busan from St. Louis with this policy.

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

Once all potential St. Louis to Busan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of St. Louis to Busan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.