AirHint found the following cheapest one-way flights from Houston (IAH) to Lisbon (LIS) in November 2025 (see full year).
One-Way flights
| 18 Nov | Spirit Airlines | ||
| 13 Nov | WestJet | ||
| 07 Nov | Frontier Airlines | ||
| 05 Nov | WestJet | ||
| 10 Nov | Spirit Airlines | ||
| 01 Nov | Frontier Airlines |
Also check the deals for return flights from Houston to Lisbon in November.
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