Cheapest return flights from Houston to Lisbon in August from 686€

Best time to book flights for Houston (IAH) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Houston (IAH) to Lisbon (LIS) in August 2025 (see full year).

Return flights

26 Aug - 02 Sep Turkish Airlines
12 Aug - 19 Aug Air Canada
13 Aug - 20 Aug Air Canada
31 Aug - 08 Sep Turkish Airlines
25 Aug - 01 Sep Turkish Airlines
05 Aug - 20 Aug Air Canada
11 Aug - 18 Aug Air Canada
18 Aug - 25 Aug Air Canada
15 Aug - 22 Aug Air Canada
21 Aug - 28 Aug Air Canada
17 Aug - 24 Aug Air Canada
16 Aug - 23 Aug Air Canada
22 Aug - 29 Aug Turkish Airlines

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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