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St. Louis

$564+ Cheap flights from Busan (PUS) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — STL
nov. 21 — nov. 281
vie. 11/21
vie. 11/28
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 octubre 22, 2025.

Round-trip from

$801
(Delta)

One-way from

$564
(Kiwi.com)
From Busan Gimhae to Lambert-St Louis
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One-way flight from Busan Gimhae to Lambert-St Louis
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Find flight deals from Busan to St. Louis

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 octubre 22, 2025.

This Delta deal was found by Cheapflights users on 10/21. 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.
jue. 4/164:30 pmPUS - STL
2 stops20h 31mDelta
lun. 4/208:50 amSTL - PUS
2 stops21h 55mDelta
Deal found 10/21$801

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 octubre 22, 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

jue. 4/16

4:30 pm-11:01 pm

2 stops20h 31m

Lambert-St Louis

lun. 4/20

8:50 am-8:45 pm

2 stops21h 55m

$801

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

dom. 11/30

6:50 am-11:57 pm

3 stops56h 07m

$564

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

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.

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.

  • How long is the flight from Busan to St. Louis?

    Delta can get you from Busan to St. Louis in just under 20h 31m. Your travel time can differ by up to . Busan and St. Louis are separated by a distance of 6740 mi.

  • 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.

See more FAQs

Traveling to a place near St. Louis?

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

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