STL - PUS

$1,339 Find Cheap Flights from St. Louis to Busan - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,339
Typical prices: $1,652-$1,978
EVA Air
Sun 10/14Sun 10/21
STL - PUS • 2 stops
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Flight Deals

Cheap Flights from St. Louis to Busan (STL-PUS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Busan

Wed, Oct 14 - Wed, Oct 21
EVA Air Logo
4:42 pm - 6:00 pmSTL  Lambert-St Louis-PUS Busan Gimhae
35h 18m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl
EVA Air Logo
11:20 am - 11:59 pmPUS  Busan Gimhae-STL Lambert-St Louis
50h 39m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,339EVA Air
Mon, Oct 19 - Thu, Oct 22
Korean Air Logo
5:35 pm - 7:45 amSTL  Lambert-St Louis-PUS Busan Gimhae
24h 10m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Korean Air Logo
8:45 am - 11:21 pmPUS  Busan Gimhae-STL Lambert-St Louis
28h 36m2 stops Incheon Intl Minneapolis St Paul
$1,572Korean Air
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
2:40 pm - 7:50 pmSTL  Lambert-St Louis-PUS Busan Gimhae
39h 10m2 stops Toronto Pearson Intl Manila Ninoy Aquino Intl
Multiple Airlines Logo
7:10 pm - 2:00 pmPUS  Busan Gimhae-STL Lambert-St Louis
32h 50m3 stops Taipei City Taiwan Taoyuan Intl Vancouver Intl Toronto Pearson Intl
$2,176Multiple Airlines
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
12:10 pm - 11:35 amSTL  Lambert-St Louis-PUS Busan Gimhae
33h 25m3 stops Montreal Pierre Elliott Trudeau Intl London Heathrow Shanghai Pu Dong
Multiple Airlines Logo
2:20 pm - 6:41 pmPUS  Busan Gimhae-STL Lambert-St Louis
42h 21m3 stops Hong Kong Intl Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$2,258Multiple Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Busan flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Busan with more confidence.

How much is a round-trip flight from St. Louis to Busan?

Round-trip flights from St. Louis to Busan start at $1,339. Prices are below average for this route right now, with typical round-trip fares ranging from $1,652 to $1,978. The lowest price found in the past 5 days was $1,339 on EVA Air.

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Key details for St. Louis to Busan flights

Cheapest flight

$624
Flight from St. Louis to Busan

When to book flights from St. Louis to Busan

Are your dates flexible? Find out the best times to travel from St. Louis to Busan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Busan flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Busan?

    Flights from St. Louis to Busan usually depart from Lambert-St Louis (STL) and arrive at Busan Gimhae (PUS).

  • Can I save money by using flexible dates for flights from St. Louis to Busan?

    Yes. Being flexible with your travel dates can save you up to 32% on the St. Louis to Busan route. Wednesday is the cheapest departure day at $1,348 round-trip on average, while Monday is the most expensive at $1,978, a difference of $630. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Busan?

    Some of the most popular sights in Busan are Haeundae Beach, Gwangalli Beach and Seomyeon. These are among the most viewed places in Busan on KAYAK.

  • Do I need a passport to fly from St. Louis to Busan?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from St. Louis to Busan changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $1,339 to $2,258. That means the highest observed fare was about 68% higher than the lowest one.

  • What is the time difference between St. Louis and Busan?

    Busan is 14 hours ahead of St. Louis (Korean Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Busan Gimhae Airport (PUS)?

    Busan Gimhae Airport (PUS) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:
    • Hi Rent
    • Yesaway
    • GREEN MOTION
    • LOTTE rent-a-car
    • Avis

Your guide to booking St. Louis to Busan flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $1,348 - about $630 less than Monday (32% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Busan Gimhae Airport.
    - Hotel Airport

More options for your flight from St. Louis to Busan

Complete your trip to Busan with a hotel stay or car rental

Car rentals in Busan
Hotels in Busan
Vacations in Busan