AirHint found the following cheapest return flights from Houston (HOU) to Lisbon (LIS) in July 2026 (see full year).
Return flights
| 21 Jul - 14 Aug | British Airways | ||
| 11 Jul - 18 Jul | Spirit Airlines | ||
| 06 Jul - 14 Jul | Air Canada | ||
| 01 Jul - 08 Jul | ITA Airways | ||
| 03 Jul - 10 Jul | Air Canada | ||
| 02 Jul - 10 Jul | Air Canada | ||
| 02 Jul - 09 Jul | Air Canada |
Also check the deals for one-way flights from Houston to Lisbon in July.
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