Cheapest return flights from Oslo to Keflavik in August from $103

Best time to book flights for Oslo (OSL) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Oslo (OSL) to Keflavik (KEF) in August 2025 (see full year).

Return flights

17 Aug - 28 Aug Norwegian direct
26 Aug - 28 Aug Norwegian direct
17 Aug - 26 Aug Norwegian direct
19 Aug - 28 Aug Norwegian direct
17 Aug - 04 Sep Norwegian direct
26 Aug - 04 Sep Norwegian direct
19 Aug - 04 Sep Norwegian direct
17 Aug - 24 Aug Norwegian direct
19 Aug - 24 Aug Norwegian direct
21 Aug - 04 Sep Norwegian direct
21 Aug - 24 Aug Norwegian direct

Also check the deals for one-way flights from Oslo to Keflavik in August.

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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