Cheapest return flights from Houston to Keflavik in August from $763

AirHint found the following cheapest return flights from Houston (IAH) to Keflavik (KEF) in August 2026 (see full year).

Return flights

19 Aug - 26 Aug Frontier Airlines
22 Aug - 29 Aug Spirit Airlines
25 Aug - 01 Sep Spirit Airlines
26 Aug - 02 Sep Frontier Airlines
20 Aug - 27 Aug Spirit Airlines
24 Aug - 31 Aug Frontier Airlines
18 Aug - 25 Aug United
29 Aug - 05 Sep Frontier Airlines
21 Aug - 28 Aug Frontier Airlines
31 Aug - 07 Sep Frontier Airlines
23 Aug - 30 Aug United
13 Aug - 22 Aug WestJet
19 Aug - 24 Aug Frontier Airlines
30 Aug - 06 Sep Frontier Airlines
28 Aug - 04 Sep United
27 Aug - 03 Sep Spirit Airlines
08 Aug - 12 Aug WestJet

Also check the deals for one-way flights from Houston to Keflavik in August.

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