Cheapest return flights from Keflavik to Vienna in September from $286

Best time to book flights for Keflavik (KEF) to Vienna (VIE) flights at AirHint

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

Return flights

15 Sep - 03 Oct Fly Play
13 Sep - 16 Sep Fly Play
17 Sep - 19 Sep Fly Play
24 Sep - 24 Oct Fly Play
15 Sep - 03 Oct Austrian Airlines direct
24 Sep - 24 Oct Austrian Airlines direct
17 Sep - 19 Sep Austrian Airlines direct

Also check the deals for one-way flights from Keflavik to Vienna 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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