$1,212+ Cheap flights from Missouri to Busan (PUS)
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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PUS
Jan 25 — Feb 11
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to Busan
Best flights from Missouri to BusanDiscover carefully curated flight deals from Missouri to Busan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.
Discover carefully curated flight deals from Missouri to Busan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.
This Expedia deal was found by Cheapflights users on 12/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/96:00 amSTL - PUS
2 stops22h 35mKorean Air
Mon 2/164:10 pmPUS - STL
2 stops22h 13mKorean Air
Deal found 12/25![Korean Air logo]()
$1,212
This Korean Air deal was found by Cheapflights users on 12/25. 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.
Thu 1/226:00 amSTL - PUS
2 stops22h 35mKorean Air
Mon 1/2610:25 amPUS - STL
2 stops28h 12mKorean Air
Deal found 12/25![Korean Air logo]()
$1,220
This Mytrip deal was found by Cheapflights users on 12/25. 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.
Mon 2/94:05 pmSTL - PUS
2 stops30h 15mMultiple Airlines
Mon 2/1610:00 pmPUS - STL
3 stops35h 11mMultiple Airlines
Deal found 12/25![Multiple Airlines logo]()
$3,211
Find flight deals from Missouri to Busan
Keep the following information in mind while searching for Missouri to Busan flight deals. Data was last updated December 26, 2025.
Round-trip from | $1,212 (Expedia) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Busan 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 December 26, 2025.
Use the filters below to find and compare flights from Missouri to Busan that are best for you.
Fly from
Missouri
Fly to
Busan
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
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
Best time to book a flight from Missouri to Busan
Have a flexible travel schedule? Discover the best time to fly to Busan from Missouri with our price prediction graph.
Estimated round-trip price
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Cheapflights Insights
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