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

Return flights

02 Nov - 06 Nov	Air Canada
02 Nov - 24 Nov	Air Canada
04 Nov - 08 Nov	Air Canada
07 Nov - 11 Nov	Air Canada
07 Nov - 13 Nov	Air Canada
08 Nov - 11 Nov	Air Canada
22 Nov - 29 Nov	Air Canada
21 Nov - 29 Nov	Air Canada
22 Nov - 06 Dec	Air Canada
07 Nov - 22 Nov	Air Canada
13 Nov - 19 Nov	Hawaiian Airlines
22 Nov - 05 Dec	Hawaiian Airlines

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

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Washington to Seoul in November from 970€

Return flights