Cheapest return flights from Houston to Lisbon in October from $529

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

Return flights

28 Oct - 04 Nov Spirit Airlines
29 Oct - 05 Nov Air Canada
27 Oct - 03 Nov Air France
06 Oct - 15 Oct Air Canada
06 Oct - 21 Oct Air Canada
13 Oct - 20 Oct Frontier Airlines
26 Oct - 02 Nov Frontier Airlines
30 Oct - 06 Nov United
23 Oct - 30 Oct Spirit Airlines
02 Oct - 07 Oct Spirit Airlines
14 Oct - 21 Oct Spirit Airlines
31 Oct - 07 Nov Air France
25 Oct - 01 Nov Frontier Airlines
06 Oct - 13 Oct Frontier Airlines
21 Oct - 28 Oct Spirit Airlines
22 Oct - 29 Oct Spirit Airlines
03 Oct - 10 Oct Spirit Airlines

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

Skyscanner

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Feel free to contact us with any feedback or request another flight research.