AirHint found the following cheapest return flights from Houston (IAH) to Keflavik (KEF) in October 2026 (see full year).
Return flights
| 01 Oct - 08 Oct | jetBlue | ||
| 06 Oct - 12 Oct | Icelandair | ||
| 07 Oct - 12 Oct | Icelandair | ||
| 11 Oct - 23 Oct | Icelandair | ||
| 09 Oct - 17 Oct | Icelandair | ||
| 20 Oct - 26 Oct | Alaska Airlines |
Also check the deals for one-way flights from Houston to Keflavik in October.
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