Cheapest return flights from Warsaw to Keflavik in September from 234€

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

Return flights

29 Sep - 05 Oct Ryanair
18 Sep - 21 Sep Ryanair
25 Sep - 28 Sep Ryanair
18 Sep - 26 Sep Ryanair
23 Sep - 01 Oct Ryanair
11 Sep - 19 Sep Ryanair
23 Sep - 30 Sep Ryanair
23 Sep - 28 Sep Ryanair
27 Sep - 02 Oct Ryanair
25 Sep - 01 Oct Ryanair
26 Sep - 03 Oct Ryanair
04 Sep - 05 Sep Ryanair
27 Sep - 05 Oct Ryanair
28 Sep - 03 Oct Ryanair
25 Sep - 02 Oct Ryanair
11 Sep - 18 Sep Ryanair
08 Sep - 14 Sep Ryanair
19 Sep - 22 Sep Ryanair
20 Sep - 01 Oct Ryanair
25 Sep - 03 Oct Ryanair

Also check the deals for one-way flights from Warsaw 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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