AirHint found the following cheapest return flights from Houston (HOU) to Tehran (IKA) in December 2025 (see full year).
Return flights
| 02 Dec - 14 Dec | Emirates | ||
| 01 Dec - 31 Dec | Turkish Airlines | ||
| 15 Dec - 31 Dec | Austrian Airlines |
Also check the deals for one-way flights from Houston to Tehran in December.
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