Cheap Flights from Seoul to St Louis
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The latest fare from Seoul to St Louis: $1486 round trip, Dec 24 – Dec 30, seen Nov 4. Prices by month are below.
Across 4 months of observations from Seoul to St Louis, the lowest round-trip economy fare we recorded was $920, in August. The typical economy fare was $1124. August was the cheapest month we saw and November the dearest.
The most recent economy price we saw on this route was $1486 on Air Canada and United, seen Nov 4.
See every deal from Seoul, to St Louis, or the return direction St Louis to Seoul.
Latest economy price we saw: Seoul to St Louis
The most recent economy round-trip fare we saw on this route.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Seoul (ICN) to St Louis (STL) | $1486 | 11.1¢ | Dec 24 – Dec 30 | Air Canada and United | Nov 4 | Check price |
Economy price history: Seoul to St Louis
The lowest fares we saw each month.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Nov 2026 | $1486 | $1486 | 1 |
| Sep 2026 | $1093 | $1093 | 1 |
| Aug 2026 | $920 | $931 | 4 |
| Jul 2026 | $987 | $987 | 1 |
Frequently asked questions
How many flight deals from Seoul to St Louis are on Sparkflights right now?
There are 0 deals from Seoul to St Louis on the board right now.
What is the lowest price ever seen from Seoul to St Louis?
The lowest economy fare we've recorded from Seoul to St Louis is $920, based on 7 price observations over 4 months.
How much does a flight from Seoul to St Louis cost?
The typical round-trip economy fare we observed from Seoul to St Louis is $1124, against a recorded low of $920. These are observations, not quotes.
When is the cheapest month to fly Seoul to St Louis?
For economy fares from Seoul to St Louis, August was the cheapest month we observed and November the dearest, over 4 months of data.
What is the current price from Seoul to St Louis?
The most recent economy fare we saw from Seoul to St Louis is $1486, on Nov 4.