Cheapest return flights from Houston (IAH) to Lisbon (LIS), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
02 Sep 10 Sep Frontier Airlines
22 Sep 29 Sep Air France
23 Sep 30 Sep Air Canada
30 Sep 07 Oct Air France
08 Sep 15 Sep Frontier Airlines
30 Sep 14 Oct Air France
24 Sep 01 Oct Turkish Airlines
09 Sep 16 Sep Turkish Airlines
25 Sep 02 Oct Air Canada
14 Sep 25 Sep Turkish Airlines
10 Sep 17 Sep Turkish Airlines
21 Sep 27 Sep Air France
11 Sep 18 Sep Turkish Airlines
12 Sep 19 Sep jetBlue
26 Sep 03 Oct Air Canada
26 Sep 04 Oct Frontier Airlines
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deals for one-way flights from Houston to Lisbon in September.

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Updated Jul 6, 2026.

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