Cheapest return flights from Houston to Lisbon in April from $640

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

Return flights

14 Apr - 21 Apr United
01 Apr - 08 Apr Delta
13 Apr - 20 Apr Air France
15 Apr - 22 Apr Delta
02 Apr - 09 Apr Turkish Airlines
02 Apr - 06 Apr Turkish Airlines
12 Apr - 19 Apr Air France
16 Apr - 23 Apr Turkish Airlines
19 Apr - 26 Apr KLM
17 Apr - 24 Apr Finnair
17 Apr - 09 May Turkish Airlines

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

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