Cheapest return flights from Washington to Seoul in December from 822€
AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN)
in December 2025 (see full year ).
Return flights
03 Dec
- 22 Dec
Frontier Airlines
822 €
04 Dec
- 13 Dec
Alaska Airlines
829 €
01 Dec
- 16 Dec
TAP
862 €
31 Dec
- 20 Jan
Frontier Airlines
923 €
07 Dec
- 10 Dec
Alaska Airlines
926 €
31 Dec
- 21 Jan
Turkish Airlines
933 €
04 Dec
- 10 Dec
Turkish Airlines
944 €
02 Dec
- 15 Dec
Turkish Airlines
1007 €
31 Dec
- 07 Jan
Turkish Airlines
1102 €
25 Dec
- 14 Jan
Frontier Airlines
1185 €
24 Dec
- 27 Dec
Frontier Airlines
1229 €
14 Dec
- 20 Dec
Frontier Airlines
1249 €
12 Dec
- 20 Dec
Frontier Airlines
1251 €
13 Dec
- 28 Dec
Frontier Airlines
1259 €
30 Dec
- 06 Jan
Turkish Airlines
1304 €
09 Dec
- 21 Jan
Turkish Airlines
1380 €
24 Dec
- 21 Jan
Air France
1501 €
18 Dec
- 15 Jan
Allegiant Air
1541 €
24 Dec
- 01 Jan
Frontier Airlines
1587 €
19 Dec
- 09 Jan
Porter Airlines (Canada) Ltd
1772 €
Also check the deals for one-way flights from Washington to Seoul in December .
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