Cheapest return flights from Seoul to Washington in May from $723

Best time to book flights for Seoul (ICN) to Washington (IAD) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to Washington (IAD) in May 2025 (see full year).

Return flights

05 May - 11 May Asiana Airlines
03 May - 10 May Asiana Airlines
11 May - 27 May Asiana Airlines
25 May - 28 May Asiana Airlines
12 May - 26 May Air Canada
14 May - 29 May Air Canada
20 May - 29 May Air Canada
12 May - 18 May Air Canada
08 May - 12 May Air Canada
05 May - 13 May Air Canada
28 May - 10 Jun Delta
22 May - 11 Jun Delta
19 May - 02 Jun Delta
19 May - 09 Jun Delta
20 May - 04 Jun Korean Air
01 May - 09 Jun Asiana Airlines
20 May - 03 Jun Emirates
28 May - 12 Jun Emirates
30 May - 07 Jun Korean Air direct
31 May - 07 Jun Korean Air direct

Also check the deals for one-way flights from Seoul to Washington in May.

Skyscanner

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.

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