Cheapest return flights from Washington to Keflavik in April from $533

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

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

Return flights

23 Apr - 30 Apr KLM
18 Apr - 25 Apr KLM
20 Apr - 27 Apr KLM
14 Apr - 28 Apr KLM
08 Apr - 15 Apr Air France
18 Apr - 26 Apr KLM
24 Apr - 01 May Air France
25 Apr - 02 May Air France
08 Apr - 15 Apr Icelandair direct
15 Apr - 23 Apr Icelandair direct
21 Apr - 25 Apr Icelandair direct
21 Apr - 29 Apr Icelandair direct
30 Apr - 11 May Icelandair direct
24 Apr - 01 May Icelandair direct
25 Apr - 02 May Icelandair direct

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

Skyscanner

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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