Cheapest return flights from St. Louis to Seoul in March from $1242
AirHint found the following cheapest return flights from St. Louis (STL) to Seoul (ICN) in March 2025 (see full year).
Return flights
| 08 Mar - 17 Mar | Air Canada | ||
| 17 Mar - 04 Apr | Air Canada | ||
| 09 Mar - 27 Mar | Alaska Airlines | ||
| 07 Mar - 15 Mar | Alaska Airlines | ||
| 15 Mar - 20 Mar | Air Canada | ||
| 07 Mar - 16 Mar | United |
Also check the deals for one-way flights from St. Louis to Seoul in March.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
