AirHint found the following cheapest return flights from San Francisco (SFO) to Keflavik (KEF) in June 2026 (see full year).
Return flights
| 09 Jun - 15 Jun | jetBlue | ||
| 20 Jun - 30 Jun | WestJet | ||
| 06 Jun - 20 Jun | Alaska Airlines | ||
| 24 Jun - 06 Jul | WestJet | ||
| 29 Jun - 06 Jul | WestJet |
Also check the deals for one-way flights from San Francisco to Keflavik in June.
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