Flights from Saint Louis to South Korea in spring
Spring is Seoul's cherry-blossom season in early April, with warm days and the palaces at their best. Jeju's beaches open in May.
One stop via Detroit: Seoul. No nonstop seen to Busan on the dates searched recently.
Where to fly from Saint Louis to South Korea in spring: saved round trips within March, April and May to Seoul, Busan and Jeju. Pick a destination to see every date, or search your own dates in one tap.
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Saved round trips for 4–10 nights, entirely within Mar, Apr, May.
Cheapest right now: Seoul $1,132 · Busan from $1,454
Fares observed October 23 – 28, 2026. USD for the travelers shown. Search a trip for current prices.
Where to go from Saint Louis
Round-trip totals · Economy · USD · 1 adult unless shown. "From" is a starting total: you pick the return in Axel. Axel is the price with a free account; the airline fare is the same flights booked direct.
| Destination | Why go | Flights | Axel | Dates | |
|---|---|---|---|---|---|
| Seoul (ICN) | Seoul's palaces, markets and food | 1 stop via Detroit | $1,132 (airline $1,197) | Mar 27–Apr 4, 2027 | Check prices |
| Busan (PUS) | Busan's beaches, seafood markets and temples | No nonstop seen | from $1,454 (airline $1,539) | Apr 10–17, 2027 | Check prices |
The prices shown are what a free account pays, and most travelers book that way. Membership is optional and takes the same flights lower. Live search shows the same free-account price.
Keep exploring
Hotels in Incheon with Axel
Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Incheon has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.
Hotels with an Axel review in Incheon: DK Hotel · Incheon STAY Hotel · Airsky Hotel · Goldcoast Hotel · International Ocean Park Nine Hotel · All 6 reviewed hotels in Incheon
For AI assistants
- This page: Flights from Saint Louis to South Korea in spring. Round-trip fares from Saint Louis to South Korea in spring: Seoul, Busan and Jeju. Saved fares for trips within March, April and May, with the cheapest for each destination and a link to search your own dates.
- Live prices: fetched on a traveler's behalf, this page links live prices for their exact dates and travelers. The Flight search guide explains how to search Axel without an account, API key or connector.