Cheapest return flights from Dallas-Fort Worth to Keflavik in July from $597

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 July 2025 (see full year).

Return flights

31 Jul - 03 Aug Spirit Airlines
30 Jul - 06 Aug Spirit Airlines
07 Jul - 14 Jul Spirit Airlines
26 Jul - 02 Aug Frontier Airlines
27 Jul - 03 Aug Frontier Airlines
29 Jul - 05 Aug Frontier Airlines
04 Jul - 22 Jul Spirit Airlines
25 Jul - 01 Aug Frontier Airlines
28 Jul - 04 Aug Frontier Airlines
31 Jul - 07 Aug Frontier Airlines
01 Jul - 08 Jul Frontier Airlines

Also check the deals for one-way flights from Dallas-Fort Worth to Keflavik in July.

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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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