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St. Louis

$1,100+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Busan to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Busan (PUS) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$1,100
(Mytrip)
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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1610:40 amPUS - STL
2 stops32h 14mMultiple Airlines
Wed 7/235:41 pmSTL - PUS
2 stops25h 49mMultiple Airlines
Deal found 6/10$1,100
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/210:40 amPUS - STL
2 stops35h 59mDelta
Sun 7/137:15 pmSTL - PUS
2 stops33h 05mDelta
Deal found 6/11$1,584
This Korean Air deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/254:30 pmPUS - STL
2 stops22h 08mKorean Air
Fri 8/111:18 amSTL - PUS
2 stops19h 27mKorean Air
Deal found 6/9$1,865

Cheapflights Fare Finder

Customize your flight search to find flights from Busan to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Busan to St. Louis that are best for you.

Fly from

Busan

Fly to

St. Louis

Route

Depart

Return

Price

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Wed 7/16

10:40 am-4:54 am

2 stops32h 14m

Lambert-St Louis

Wed 7/23

5:41 pm-9:30 am

2 stops25h 49m

$1,100

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Wed 7/2

7:00 am-12:43 am

2 stops31h 43m

Lambert-St Louis

Sun 7/13

8:50 am-8:45 pm

2 stops21h 55m

$1,584

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Fri 7/25

4:30 pm-12:38 am

2 stops22h 08m

Lambert-St Louis

Fri 8/1

11:18 am-8:45 pm

2 stops19h 27m

$1,865

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Fri 7/25

4:30 pm-12:38 am

2 stops22h 08m

$1,247

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Cheapflights Insights

Everything you need to know about your flight from Busan to St. Louis

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

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.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 12, 2025.
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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
7,950 reviews
Korean Air
8.4
Very good
1,088 reviews

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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

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?

    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

Traveling to a place near Busan?

Book flights to Busan if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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