AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN)
in May 2025 (see full year ).
Return flights
10 May
- 17 May
Alaska Airlines
$ 903
14 May
- 27 May
Turkish Airlines
$ 947
14 May
- 18 Jun
Turkish Airlines
$ 947
07 May
- 14 May
Alaska Airlines
$ 963
14 May
- 26 May
Turkish Airlines
$ 983
14 May
- 24 May
Turkish Airlines
$ 1003
01 May
- 01 Jun
Turkish Airlines
$ 1007
10 May
- 26 May
Turkish Airlines
$ 1027
10 May
- 01 Jun
Alaska Airlines
$ 1028
01 May
- 31 May
Turkish Airlines
$ 1043
14 May
- 18 May
Hawaiian Airlines
$ 1052
16 May
- 21 May
Alaska Airlines
$ 1067
24 May
- 03 Jun
Hawaiian Airlines
$ 1073
14 May
- 25 May
WestJet
$ 1082
30 May
- 07 Jun
WestJet
$ 1154
25 May
- 29 Jun
Hawaiian Airlines
$ 1266
20 May
- 01 Jun
Porter Airlines (Canada) Ltd
$ 1290
18 May
- 05 Jun
Scandinavian Airlines
$ 1293
17 May
- 05 Jun
Turkish Airlines
$ 1311
27 May
- 23 Jun
Icelandair
$ 1446
Also check the deals for one-way flights from Washington to Seoul in May .
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.
