Cheapest return flights from Washington to Keflavik in January from $392

AirHint found the following cheapest return flights from Washington (IAD) to Keflavik (KEF) in January 2026 (see full year).

Return flights

31 Jan - 07 Feb Icelandair direct
26 Jan - 02 Feb Icelandair direct
27 Jan - 03 Feb Icelandair direct
28 Jan - 04 Feb Icelandair direct
17 Jan - 24 Jan Icelandair direct
27 Jan - 31 Jan Icelandair direct
22 Jan - 29 Jan Icelandair direct
24 Jan - 31 Jan Icelandair direct
23 Jan - 30 Jan Icelandair direct
05 Jan - 15 Jan Icelandair direct
10 Jan - 18 Jan Icelandair direct
22 Jan - 26 Jan Icelandair direct
01 Jan - 24 Jan Icelandair direct
25 Jan - 01 Feb Icelandair direct
13 Jan - 19 Jan Icelandair direct
28 Jan - 21 Feb Icelandair direct
30 Jan - 01 Feb Icelandair direct

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

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