Cheapest return flights from San Francisco to Keflavik in March from 523€

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

Return flights

31 Mar - 08 Apr British Airways
23 Mar - 31 Mar SWISS
19 Mar - 27 Mar British Airways
26 Mar - 02 Apr SWISS
31 Mar - 07 Apr Lufthansa
26 Mar - 03 Apr SWISS
24 Mar - 01 Apr Hawaiian Airlines
24 Mar - 31 Mar Lufthansa
30 Mar - 06 Apr Hawaiian Airlines
29 Mar - 06 Apr Lufthansa
22 Mar - 30 Mar British Airways
29 Mar - 05 Apr Lufthansa
25 Mar - 01 Apr Hawaiian Airlines
27 Mar - 04 Apr Hawaiian Airlines
21 Mar - 29 Mar British Airways
20 Mar - 28 Mar Hawaiian Airlines

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

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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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