Cheapest return flights from Washington to Seoul in April from $900

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

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

Return flights

12 Apr - 19 Apr Air Canada
01 Apr - 08 Apr Air Canada
16 Apr - 23 Apr Air Canada
15 Apr - 22 Apr Turkish Airlines
20 Apr - 03 May Turkish Airlines
24 Apr - 27 Apr Turkish Airlines
04 Apr - 10 Apr Turkish Airlines
04 Apr - 11 Apr Turkish Airlines
13 Apr - 25 Apr Turkish Airlines
01 Apr - 08 Apr Korean Air direct
04 Apr - 11 Apr Korean Air direct
20 Apr - 03 May Korean Air direct

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

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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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