Cheapest return flights from Warsaw to Keflavik in September from 263€

Best time to book flights for Warsaw (WMI) to Keflavik (KEF) flights at AirHint

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

Return flights

15 Sep - 21 Sep Ryanair
22 Sep - 02 Oct Ryanair
26 Sep - 03 Oct Ryanair
08 Sep - 15 Sep Ryanair
05 Sep - 15 Sep Ryanair
21 Sep - 25 Sep Ryanair
28 Sep - 08 Oct Ryanair
22 Sep - 29 Sep Ryanair
21 Sep - 28 Sep Ryanair
16 Sep - 21 Sep Ryanair
14 Sep - 21 Sep Ryanair
15 Sep - 25 Sep Ryanair
01 Sep - 08 Sep Ryanair
28 Sep - 05 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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