Cheapest return flights from Washington to Seoul in December from $1713
AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN) in December 2025 (see full year).
Return flights
| 18 Dec - 27 Dec | Air France | ||
| 18 Dec - 29 Dec | Air France | ||
| 13 Dec - 03 Jan | Air Canada | ||
| 18 Dec - 29 Dec | Korean Air | direct | |
| 18 Dec - 27 Dec | Korean Air | direct | |
| 13 Dec - 03 Jan | Korean Air | direct |
Also check the deals for one-way flights from Washington to Seoul in December.
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.
