Cheapest one-way flights from San Jose to Keflavik in May from $577

Best time to book flights for San Jose (SJC) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from San Jose (SJC) to Keflavik (KEF) in May 2025 (see full year).

One-Way flights

31 May Icelandair
21 May Icelandair

Also check the deals for return flights from San Jose to Keflavik in May.

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.

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