Cheapest return flights from Houston to Keflavik in March from $501

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

Return flights

10 Mar - 17 Mar Spirit Airlines
30 Mar - 06 Apr Spirit Airlines
20 Mar - 27 Mar jetBlue
23 Mar - 30 Mar jetBlue
28 Mar - 04 Apr jetBlue
13 Mar - 22 Mar jetBlue
24 Mar - 31 Mar Frontier Airlines
15 Mar - 22 Mar Spirit Airlines
27 Mar - 03 Apr jetBlue
22 Mar - 29 Mar jetBlue
26 Mar - 02 Apr jetBlue
31 Mar - 07 Apr Lufthansa
29 Mar - 05 Apr Lufthansa

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

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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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