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

Return flights

19 Nov - 26 Nov	jetBlue
05 Nov - 12 Nov	jetBlue
04 Nov - 11 Nov	British Airways
12 Nov - 19 Nov	British Airways
18 Nov - 25 Nov	British Airways
25 Nov - 02 Dec	jetBlue
03 Nov - 10 Nov	British Airways
20 Nov - 27 Nov	jetBlue
02 Nov - 09 Nov	jetBlue
24 Nov - 01 Dec	British Airways
01 Nov - 08 Nov	jetBlue
20 Nov - 25 Nov	British Airways
29 Nov - 06 Dec	British Airways

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Washington to Keflavik in November from $544

Return flights