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

Return flights

17 Nov - 24 Nov	jetBlue
09 Nov - 13 Nov	jetBlue
08 Nov - 15 Nov	jetBlue
11 Nov - 06 Dec	jetBlue
18 Nov - 25 Nov	jetBlue
20 Nov - 23 Nov	jetBlue
27 Nov - 20 Dec	jetBlue
20 Nov - 13 Dec	jetBlue
26 Nov - 20 Dec	jetBlue
10 Nov - 06 Dec	jetBlue
12 Nov - 06 Dec	jetBlue
13 Nov - 06 Dec	jetBlue
22 Nov - 13 Dec	jetBlue
20 Nov - 24 Nov	jetBlue
19 Nov - 23 Nov	jetBlue
27 Nov - 01 Dec	Air Canada
21 Nov - 13 Dec	jetBlue
20 Nov - 26 Nov	jetBlue
12 Nov - 16 Nov	jetBlue
10 Nov - 17 Nov	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 $650

Return flights