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.

$1,212 Cheap Flights from St. Louis to Busan in 2025/26

1 adult

0 bags

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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.

6:00 am - 7:35 pm

STL

PUS

22h 35m2 stops

4:10 pm - 11:23 pm

PUS

STL

22h 13m2 stops

$1,212Korean Air

Mon, Feb 9 - Mon, Feb 16

6:00 am - 7:35 pm

STL

PUS

22h 35m2 stops

7:00 am - 11:25 pm

PUS

STL

31h 25m2 stops

$1,219Korean Air

Thu, Jan 22 - Mon, Jan 26

6:00 am - 7:35 pm

STL

PUS

22h 35m2 stops

10:25 am - 11:37 pm

PUS

STL

28h 12m2 stops

$1,220Korean Air

Thu, Jan 22 - Mon, Jan 26

4:05 pm - 1:20 pm

STL

PUS

30h 15m2 stops

10:00 pm - 6:11 pm

PUS

STL

35h 11m3 stops

$3,211Multiple Airlines

Mon, Feb 9 - Mon, Feb 16

Korean Air flights from St. Louis to Busan

Our best Korean Air deals on St. Louis to Busan flight tickets

Korean Air

Feb 9

STL6:00 amLambert-St Louis

22h 35m

2 stops

PUS7:35 pmBusan Gimhae

Feb 16

PUS4:10 pmBusan Gimhae

22h 13m

2 stops

STL11:23 pmLambert-St Louis

$1,212

Find similar

Korean Air

Jan 22

STL6:00 amLambert-St Louis

22h 35m

2 stops

PUS7:35 pmBusan Gimhae

Jan 26

PUS7:00 amBusan Gimhae

31h 25m

2 stops

STL11:25 pmLambert-St Louis

$1,219

Find similar

Korean Air

Jan 22

STL6:00 amLambert-St Louis

22h 35m

2 stops

PUS7:35 pmBusan Gimhae

Jan 26

PUS10:25 amBusan Gimhae

28h 12m

2 stops

STL11:37 pmLambert-St Louis

$1,220

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Mon 2/9

6:00 am-7:35 pm

2 stops22h 35m

Busan Gimhae

Mon 2/16

4:10 pm-11:23 pm

2 stops22h 13m

$1,212

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Thu 1/22

6:00 am-7:35 pm

2 stops22h 35m

Busan Gimhae

Mon 1/26

7:00 am-11:25 pm

2 stops31h 25m

$1,219

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Thu 1/22

6:00 am-7:35 pm

2 stops22h 35m

Busan Gimhae

Mon 1/26

10:25 am-11:37 pm

2 stops28h 12m

$1,220

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Mon 2/9

4:05 pm-1:20 pm

2 stops30h 15m

Busan Gimhae

Mon 2/16

10:00 pm-6:11 pm

3 stops35h 11m

$3,211

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	22h 35m
Direct flights	None

The fastest flight from St. Louis to Busan takes 22h 35m

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

Search flight deals

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 22h 35m.
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.

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.