Cheapest return flights from Houston to Lisbon in May from 554€

Best time to book flights for Houston (IAH) to Lisbon (LIS) flights at AirHint

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

Return flights

13 May - 15 May Spirit Airlines
13 May - 20 May Spirit Airlines
13 May - 19 May Spirit Airlines
13 May - 18 May Spirit Airlines
13 May - 28 May Spirit Airlines
07 May - 14 May Spirit Airlines
07 May - 19 May Spirit Airlines
06 May - 13 May Spirit Airlines
08 May - 15 May Spirit Airlines
07 May - 18 May Spirit Airlines
27 May - 03 Jun Spirit Airlines
29 May - 06 Jun Spirit Airlines
31 May - 08 Jun Spirit Airlines
26 May - 02 Jun Spirit Airlines
31 May - 07 Jun Spirit Airlines
30 May - 07 Jun Spirit Airlines
23 May - 06 Jun Air Canada
31 May - 09 Jun Air Canada

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

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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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