Cheapest return flights from San Francisco to Keflavik in June from $792

AirHint found the following cheapest return flights from San Francisco (SFO) to Keflavik (KEF) in June 2026 (see full year).

Return flights

18 Jun - 04 Jul WestJet
27 Jun - 04 Jul Alaska Airlines
22 Jun - 29 Jun WestJet
10 Jun - 21 Jun jetBlue
25 Jun - 02 Jul WestJet
20 Jun - 27 Jun Alaska Airlines
11 Jun - 19 Jun Alaska Airlines
21 Jun - 28 Jun Alaska Airlines
29 Jun - 06 Jul WestJet
30 Jun - 07 Jul WestJet
23 Jun - 30 Jun Alaska Airlines
24 Jun - 01 Jul Alaska Airlines
18 Jun - 25 Jun WestJet
26 Jun - 03 Jul WestJet
19 Jun - 26 Jun WestJet
28 Jun - 05 Jul WestJet
23 Jun - 05 Jul Icelandair

Also check the deals for one-way flights from San Francisco to Keflavik in June.

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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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