Cheapest return flights from Copenhagen to Keflavik in September from 161€

Best time to book flights for Copenhagen (CPH) to Keflavik (KEF) flights at AirHint

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

Return flights

17 Sep - 01 Oct Fly Play direct
10 Sep - 17 Sep Fly Play direct
10 Sep - 16 Sep Fly Play direct
25 Sep - 05 Oct Fly Play direct
16 Sep - 18 Sep Fly Play direct
09 Sep - 20 Sep Fly Play direct
19 Sep - 30 Sep Fly Play direct
18 Sep - 28 Sep Fly Play direct
02 Sep - 07 Sep Fly Play direct
01 Sep - 04 Sep Fly Play direct
10 Sep - 14 Sep Fly Play direct
11 Sep - 18 Sep Fly Play direct
28 Sep - 10 Oct LOT
28 Sep - 11 Oct Ryanair
28 Sep - 05 Oct Ryanair
28 Sep - 10 Oct Icelandair direct
28 Sep - 11 Oct Icelandair direct
28 Sep - 05 Oct Icelandair direct

Also check the deals for one-way flights from Copenhagen 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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