What is the cheapest month to book a flight from Busan to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Busan to St. Louis (average of $311). Flying from Busan to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from PUS to STL?

When flying from Busan to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Busan to St. Louis that include hotel bookings?

Yes. In addition to deals on Busan to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Busan to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Busan to St. Louis.

Can I find deals for business class flights from Busan to St. Louis?

Yes. Cheapflights offers flight deals from Busan to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,101+ Flights from Busan to St. Louis

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Cheap flight deals from Busan to St. Louis

Round-trip from	$1,101 (Gotogate)

From Busan Gimhae to Lambert-St Louis

Search Deals

Find flight deals from Busan to St. Louis

Cheapest flights from Busan to St. Louis
Explore the most affordable flight options available from Busan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Thu 8/147:35 amPUS - STL

2 stops26h 10mMultiple Airlines

Thu 8/219:15 amSTL - PUS

2 stops36h 55mMultiple Airlines

Deal found 6/30

$1,101

Mon 8/1110:40 amPUS - STL

2 stops27h 58mDelta

Mon 8/188:46 amSTL - PUS

2 stops21h 59mDelta

Deal found 6/30

$1,805

Best flights from Busan to St. Louis
Discover carefully curated flight deals from Busan to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2025.

Thu 8/147:35 amPUS - STL

2 stops26h 10mMultiple Airlines

Thu 8/219:15 amSTL - PUS

2 stops36h 55mMultiple Airlines

Deal found 6/30

$1,101

Mon 8/1110:40 amPUS - STL

2 stops27h 58mDelta

Mon 8/188:46 amSTL - PUS

2 stops21h 59mDelta

Deal found 6/30

$1,805

Last-minute flights from Busan to St. Louis
Discover last-minute flight deals from Busan to St. Louis. Data last updated July 1, 2025 and is based on user searches.

Mon 8/1110:40 amPUS - STL

2 stops27h 58mDelta

Mon 8/188:46 amSTL - PUS

2 stops21h 59mDelta

Deal found 6/30

$1,805

Thu 8/147:35 amPUS - STL

2 stops26h 10mMultiple Airlines

Thu 8/219:15 amSTL - PUS

2 stops36h 55mMultiple Airlines

Deal found 6/30

$1,101

One-way flights from Busan to St. Louis
Search for one-way flight options from Busan to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 1, 2025.

Fri 8/158:45 amPUS - STL

2 stops29h 53mKorean Air

Deal found 7/1

$1,238

Cheapflights Fare Finder

Use the filters below to find and compare flights from Busan to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Thu 8/14

7:35 am-7:45 pm

2 stops26h 10m

Lambert-St Louis

Thu 8/21

9:15 am-12:10 pm

2 stops36h 55m

$1,101

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Mon 8/11

10:40 am-12:38 am

2 stops27h 58m

Lambert-St Louis

Mon 8/18

8:46 am-8:45 pm

2 stops21h 59m

$1,805

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Fri 8/15

8:45 am-12:38 am

2 stops29h 53m

$1,238

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Busan to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Busan with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Busan to St. Louis, such as Korean Air and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,101 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Korean Air

8.4

Very good

1,101 reviews

Korean Air

8.4

Very good

1,101 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Delta

8.0

Very good

7,974 reviews

Korean Air

8.4

Very good

1,101 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Can I find deals for flights from Busan to St. Louis that include hotel bookings?
Yes. In addition to deals on Busan to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Busan to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Busan to St. Louis.
Can I find deals for business class flights from Busan to St. Louis?
Yes. Cheapflights offers flight deals from Busan to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Busan to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Busan to St. Louis (average of $311). Flying from Busan to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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$1,101+ Cheap flights from Busan (PUS) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Busan to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Busan to St. Louis

Round-trip from

Find flight deals from Busan to St. Louis

Cheapest flights from Busan to St. LouisExplore the most affordable flight options available from Busan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Explore the most affordable flight options available from Busan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Busan to St. Louis that are best for you.

Best time to book a flight from Busan to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Busan with our price prediction graph.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Busan to St. Louis, such as Korean Air and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Busan to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Busan to St. Louis that include hotel bookings?

How can I find direct flights from Busan to St. Louis?

Can I find deals for business class flights from Busan to St. Louis?

What is the cheapest month to book a flight from Busan to St. Louis?

Traveling to a place near Busan?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Busan to St. Louis

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Book with Flexibility

Travel Smart

Cheapest flights from Busan to St. Louis
Explore the most affordable flight options available from Busan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.