Cheapest one-way flights from Seattle to Keflavik in June from 517€

Best time to book flights for Seattle (SEA) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Keflavik (KEF) in June 2025 (see full year).

One-Way flights

04 Jun Icelandair direct
05 Jun Icelandair direct
06 Jun Icelandair direct
07 Jun Icelandair direct
08 Jun Icelandair direct
09 Jun Icelandair direct
10 Jun Icelandair direct
11 Jun Icelandair direct
12 Jun Icelandair direct
13 Jun Icelandair direct

Also check the deals for return flights from Seattle to Keflavik in June.

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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