AirHint found the following cheapest return flights from Houston (IAH) to Oslo (OSL) in December 2025 (see full year).
Return flights
| 04 Dec - 10 Dec | Spirit Airlines | ||
| 04 Dec - 12 Dec | Spirit Airlines | ||
| 11 Dec - 18 Dec | Spirit Airlines | ||
| 15 Dec - 21 Dec | Lufthansa | ||
| 30 Dec - 07 Jan | Air France | ||
| 04 Dec - 11 Dec | Condor |
Also check the deals for one-way flights from Houston to Oslo in December.
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