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

Return flights

05 Jun - 14 Jun	WestJet
06 Jun - 14 Jun	WestJet
16 Jun - 24 Jun	WestJet
23 Jun - 30 Jun	WestJet
16 Jun - 23 Jun	WestJet
14 Jun - 21 Jun	WestJet
14 Jun - 22 Jun	WestJet
15 Jun - 23 Jun	WestJet
15 Jun - 22 Jun	WestJet
17 Jun - 24 Jun	WestJet
23 Jun - 01 Jul	Air Canada
24 Jun - 01 Jul	Air Canada
24 Jun - 02 Jul	Air Canada
28 Jun - 06 Jul	British Airways
25 Jun - 02 Jul	Air Canada
25 Jun - 03 Jul	Air Canada
28 Jun - 05 Jul	British Airways
26 Jun - 03 Jul	Air Canada
27 Jun - 05 Jul	Air Canada
26 Jun - 04 Jul	Air Canada

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

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 June from 783€

Return flights