Cheapest return flights from Houston to Lisbon in September from $733

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

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

Return flights

16 Sep - 23 Sep Turkish Airlines
04 Sep - 11 Sep Turkish Airlines
30 Sep - 07 Oct Turkish Airlines
05 Sep - 12 Sep Turkish Airlines
08 Sep - 15 Sep Turkish Airlines
06 Sep - 13 Sep Turkish Airlines
01 Sep - 22 Sep United
07 Sep - 14 Sep Air Canada

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

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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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