AirHint found the following cheapest return flights from Houston (HOU) to Lisbon (LIS) in June 2026 (see full year).
Return flights
| 06 Jun - 13 Jun | Spirit Airlines | ||
| 21 Jun - 29 Jun | WestJet | ||
| 22 Jun - 30 Jun | Air Canada | ||
| 23 Jun - 01 Jul | British Airways | ||
| 24 Jun - 02 Jul | Air Canada | ||
| 30 Jun - 06 Jul | Air Canada | ||
| 27 Jun - 05 Jul | Air Canada |
Also check the deals for one-way flights from Houston to Lisbon in June.
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