Cheapest return flights from Houston to Lisbon in December from $625

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 December 2025 (see full year).

Return flights

09 Dec - 16 Dec Air Canada
02 Dec - 09 Dec Air Canada
10 Dec - 17 Dec United
03 Dec - 10 Dec Air Canada
11 Dec - 18 Dec Air Canada
04 Dec - 11 Dec Air Canada
02 Dec - 15 Dec Air Canada
07 Dec - 14 Dec United
05 Dec - 12 Dec Air Canada
12 Dec - 19 Dec Air Canada

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

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.

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