Cheapest return flights from Bucharest to Keflavik in September from $270

AirHint found the following cheapest return flights from Bucharest (OTP) to Keflavik (KEF) in September 2025 (see full year).

Return flights

30 Sep - 07 Oct Ryanair
10 Sep - 17 Sep Ryanair
30 Sep - 08 Oct Ryanair
30 Sep - 05 Oct Ryanair
18 Sep - 25 Sep Ryanair
01 Sep - 07 Oct Scandinavian Airlines
16 Sep - 23 Sep Ryanair
01 Sep - 07 Sep Scandinavian Airlines
01 Sep - 30 Sep Scandinavian Airlines
05 Sep - 10 Sep airBaltic
19 Sep - 21 Sep Scandinavian Airlines
12 Sep - 19 Sep Ryanair

Also check the deals for one-way flights from Bucharest to Keflavik in September.

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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