Cheapest return flights from San Francisco to Keflavik in June from $520

Best time to book flights for San Francisco (SFO) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from San Francisco (SFO) to Keflavik (KEF) in June 2025 (see full year).

Return flights

03 Jun - 10 Jun Air Canada
04 Jun - 09 Jun Flair Airlines
30 Jun - 14 Jul WestJet
25 Jun - 03 Jul WestJet
17 Jun - 30 Jun WestJet
10 Jun - 16 Jun Flair Airlines
16 Jun - 03 Jul Flair Airlines
28 Jun - 12 Jul WestJet
28 Jun - 13 Jul WestJet
18 Jun - 25 Jun United
09 Jun - 16 Jun United
21 Jun - 28 Jun United
30 Jun - 07 Jul United
15 Jun - 22 Jun United
24 Jun - 01 Jul United
06 Jun - 13 Jun United
12 Jun - 19 Jun United

Also check the deals for one-way flights from San Francisco 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik