Cheapest return flights from Washington to Seoul in May from 850€

AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN) in May 2026 (see full year).

Return flights

01 May - 15 May Air Premia direct
01 May - 08 May Air Premia direct
04 May - 18 May Frontier Airlines
04 May - 11 May Air Premia direct
04 May - 18 May Air Premia direct
15 May - 25 May WestJet
08 May - 15 May Air Premia direct
15 May - 29 Jun WestJet
16 May - 02 Jun Porter Airlines (Canada) Ltd
01 May - 16 May Air Premia
18 May - 22 Jun Frontier Airlines
22 May - 22 Jun Sun Country Airlines
15 May - 23 May WestJet
21 May - 04 Jun Sun Country Airlines
14 May - 04 Jun Porter Airlines (Canada) Ltd
03 May - 24 May Frontier Airlines
29 May - 08 Jun Sun Country Airlines
16 May - 13 Jun Porter Airlines (Canada) Ltd
24 May - 18 Jun Alaska Airlines
27 May - 17 Jun Porter Airlines (Canada) Ltd

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

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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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