AirHint found the following cheapest return flights from Houston (HOU) to Lisbon (LIS) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar	United
02 Mar - 09 Mar	Air France
09 Mar - 16 Mar	Air France
10 Mar - 17 Mar	Air France
11 Mar - 18 Mar	Delta
04 Mar - 10 Mar	Lufthansa
04 Mar - 11 Mar	KLM
18 Mar - 25 Mar	KLM
04 Mar - 09 Mar	KLM
01 Mar - 08 Mar	United
30 Mar - 06 Apr	KLM
31 Mar - 07 Apr	Air France
31 Mar - 09 Apr	Air France
21 Mar - 03 Apr	Lufthansa
20 Mar - 03 Apr	Air Canada
29 Mar - 05 Apr	Air France

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

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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Cheapest return flights from Houston to Lisbon in March from $550

Return flights