Cheapest return flights from Houston to Lisbon in January from 421€

AirHint found the following cheapest return flights from Houston (IAH) to Lisbon (LIS) in January 2026 (see full year).

Return flights

22 Jan - 05 Feb Brussels Airlines
30 Jan - 06 Feb Brussels Airlines
14 Jan - 23 Jan Brussels Airlines
16 Jan - 19 Jan SWISS
15 Jan - 18 Jan SWISS
16 Jan - 18 Jan United
05 Jan - 07 Jan Spirit Airlines
06 Jan - 07 Jan Spirit Airlines

Also check the deals for one-way flights from Houston to Lisbon in January.

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