Cheapest one-way flights from San Juan to Keflavik in April from $356

Best time to book flights for San Juan (SJU) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from San Juan (SJU) to Keflavik (KEF) in April 2025 (see full year).

One-Way flights

01 Apr Frontier Airlines

Also check the deals for return flights from San Juan to Keflavik in April.

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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