AirHint found the following cheapest return flights from Houston (IAH) to Keflavik (KEF) in July 2026 (see full year).
Return flights
| 03 Jul - 12 Jul | jetBlue | ||
| 18 Jul - 31 Jul | jetBlue | ||
| 24 Jul - 02 Aug | Frontier Airlines | ||
| 19 Jul - 31 Jul | WestJet | ||
| 20 Jul - 31 Jul | Frontier Airlines | ||
| 09 Jul - 18 Jul | Frontier Airlines |
Also check the deals for one-way flights from Houston to Keflavik in July.
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