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

Return flights

10 Nov - 17 Nov	Scandinavian Airlines
18 Nov - 25 Nov	Scandinavian Airlines
27 Nov - 02 Dec	Air Canada
10 Nov - 06 Dec	Scandinavian Airlines
17 Nov - 13 Dec	Scandinavian Airlines
13 Nov - 17 Nov	jetBlue
20 Nov - 26 Nov	jetBlue
20 Nov - 27 Nov	jetBlue
27 Nov - 01 Dec	Scandinavian Airlines
06 Nov - 10 Nov	jetBlue
01 Nov - 08 Nov	jetBlue
02 Nov - 09 Nov	jetBlue
07 Nov - 11 Nov	jetBlue
03 Nov - 10 Nov	Scandinavian Airlines
27 Nov - 20 Dec	jetBlue

Also check the deals for one-way flights from Washington to Keflavik 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.

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Cheapest return flights from Washington to Keflavik in November from $559

Return flights