AirHint found the following cheapest one-way flights from Houston (IAH) to Tehran (IKA) in January 2026 (see full year).
One-Way flights
| 16 Jan | WestJet | ||
| 11 Jan | Frontier Airlines | ||
| 01 Jan | Lufthansa | ||
| 04 Jan | Lufthansa |
Also check the deals for return flights from Houston to Tehran in January.
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