Cheapest return flights from Houston to Keflavik in July from $794

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

Return flights

22 Jul - 29 Jul Frontier Airlines
28 Jul - 04 Aug Frontier Airlines
29 Jul - 05 Aug Frontier Airlines
21 Jul - 28 Jul Frontier Airlines
14 Jul - 21 Jul Frontier Airlines
30 Jul - 06 Aug Frontier Airlines
15 Jul - 22 Jul Frontier Airlines
25 Jul - 01 Aug Frontier Airlines
13 Jul - 20 Jul Frontier Airlines
16 Jul - 23 Jul Frontier Airlines
16 Jul - 02 Aug Spirit Airlines
18 Jul - 25 Jul Frontier Airlines
20 Jul - 27 Jul Frontier Airlines
23 Jul - 30 Jul Frontier Airlines
27 Jul - 03 Aug Frontier Airlines
17 Jul - 24 Jul Frontier Airlines
24 Jul - 01 Aug WestJet
26 Jul - 02 Aug Frontier Airlines
31 Jul - 07 Aug WestJet

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

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