Cheapest return flights from San Francisco (SFO) to Keflavik (KEF), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
01 Sep 08 Sep WestJet
24 Sep 01 Oct Frontier Airlines
03 Sep 10 Sep WestJet
08 Sep 15 Sep Air Canada
30 Sep 07 Oct Air Canada
10 Sep 17 Sep Frontier Airlines
22 Sep 29 Sep Air Canada
23 Sep 30 Sep Air Canada
29 Sep 06 Oct Air Canada
22 Sep 05 Oct jetBlue
16 Sep 23 Sep jetBlue
14 Sep 21 Sep jetBlue
15 Sep 22 Sep jetBlue
28 Sep 05 Oct Icelandair
09 Sep 16 Sep Icelandair
27 Sep 04 Oct jetBlue
25 Sep 02 Oct Sun Country Airlines
17 Sep 09 Oct jetBlue
26 Sep 03 Oct jetBlue
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Updated Jul 7, 2026.

About these fares

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