Cheapest return flights from Houston to Keflavik in September from $828

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

Return flights

06 Sep - 13 Sep United
14 Sep - 22 Sep United
07 Sep - 14 Sep United
03 Sep - 12 Sep jetBlue
05 Sep - 12 Sep United

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

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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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