Cheapest return flights from Dallas-Fort Worth to Keflavik in September from $497

Best time to book flights for Dallas-Fort Worth (DFW) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Keflavik (KEF) in September 2025 (see full year).

Return flights

18 Sep - 25 Sep Spirit Airlines
22 Sep - 29 Sep jetBlue
14 Sep - 21 Sep Spirit Airlines
15 Sep - 22 Sep jetBlue
02 Sep - 09 Sep Air France
17 Sep - 26 Sep Spirit Airlines
06 Sep - 13 Sep Spirit Airlines
21 Sep - 28 Sep KLM
13 Sep - 20 Sep United

Also check the deals for one-way flights from Dallas-Fort Worth 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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