Cheapest return flights from Washington to Keflavik in March from $442

Best time to book flights for Washington (DCA) to Keflavik (KEF) flights at AirHint

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

Return flights

11 Mar - 18 Mar jetBlue
18 Mar - 25 Mar jetBlue
12 Mar - 19 Mar jetBlue
03 Mar - 08 Mar jetBlue
04 Mar - 11 Mar British Airways
10 Mar - 19 Mar British Airways
26 Mar - 02 Apr British Airways
05 Mar - 14 Mar British Airways
04 Mar - 12 Mar British Airways
03 Mar - 10 Mar jetBlue
12 Mar - 17 Mar British Airways
27 Mar - 03 Apr British Airways
28 Mar - 04 Apr British Airways
25 Mar - 01 Apr Icelandair
31 Mar - 05 Apr jetBlue

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

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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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