Cheapest return flights from Oslo to Keflavik in August from $128

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

28 Aug - 09 Sep Norwegian direct
24 Aug - 09 Sep Norwegian direct
26 Aug - 09 Sep Norwegian direct
21 Aug - 09 Sep Norwegian direct
28 Aug - 02 Sep Norwegian direct
24 Aug - 02 Sep Norwegian direct
19 Aug - 26 Aug Scandinavian Airlines direct
17 Aug - 26 Aug Scandinavian Airlines direct
22 Aug - 27 Aug Scandinavian Airlines direct
24 Aug - 26 Aug Norwegian direct
29 Aug - 01 Sep Scandinavian Airlines
24 Aug - 27 Aug Scandinavian Airlines direct
26 Aug - 29 Aug Scandinavian Airlines direct
19 Aug - 27 Aug Scandinavian Airlines direct
26 Aug - 02 Sep Norwegian direct
28 Aug - 04 Sep Norwegian direct
24 Aug - 04 Sep Norwegian direct
22 Aug - 29 Aug Scandinavian Airlines direct
27 Aug - 30 Aug Scandinavian Airlines direct
18 Aug - 26 Aug Scandinavian Airlines direct

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

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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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