Cheapest return flights from Houston to Lisbon in December from 478€

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

Return flights

07 Dec - 13 Dec Air France
10 Dec - 14 Dec Air France
01 Dec - 08 Dec Lufthansa
09 Dec - 13 Dec Spirit Airlines
12 Dec - 14 Dec United
24 Dec - 28 Dec British Airways
24 Dec - 29 Dec Spirit Airlines
25 Dec - 29 Dec Frontier Airlines
26 Dec - 04 Jan Frontier Airlines
28 Dec - 03 Jan Frontier Airlines

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

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