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

Return flights

08 Jun - 16 Jun	WestJet
02 Jun - 09 Jun	Spirit Airlines
01 Jun - 09 Jun	Spirit Airlines
02 Jun - 10 Jun	Spirit Airlines
03 Jun - 10 Jun	Spirit Airlines
09 Jun - 16 Jun	Spirit Airlines
01 Jun - 11 Jun	Spirit Airlines
06 Jun - 13 Jun	Spirit Airlines
05 Jun - 13 Jun	Spirit Airlines
03 Jun - 11 Jun	Spirit Airlines
24 Jun - 07 Jul	WestJet

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

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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Cheapest return flights from Houston to Keflavik in June from $813

Return flights