Cheapest return flights from Houston to Lisbon in August from $643

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

Return flights

11 Aug - 18 Aug Air France
12 Aug - 19 Aug Delta
12 Aug - 18 Aug British Airways
13 Aug - 20 Aug Delta
14 Aug - 21 Aug Delta
15 Aug - 22 Aug Delta
10 Aug - 17 Aug Lufthansa
09 Aug - 16 Aug Lufthansa
04 Aug - 06 Aug Spirit Airlines
03 Aug - 06 Aug Spirit Airlines

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

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