Cheapest one-way flights from San Francisco to Keflavik in January from $337

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Keflavik (KEF) in January 2026 (see full year).

One-Way flights

31 Jan Flair Airlines
16 Jan WestJet
11 Jan Frontier Airlines

Also check the deals for return flights from San Francisco to Keflavik in January.

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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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