Cheapest return flights from Houston to Porto in June from $751

Best time to book flights for Houston (IAH) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Houston (IAH) to Porto (OPO) in June 2025 (see full year).

Return flights

06 Jun - 13 Jun Spirit Airlines
09 Jun - 16 Jun Spirit Airlines
05 Jun - 12 Jun Spirit Airlines
04 Jun - 11 Jun Frontier Airlines
04 Jun - 10 Jun Frontier Airlines
13 Jun - 20 Jun Spirit Airlines
03 Jun - 06 Jun Spirit Airlines
08 Jun - 15 Jun Spirit Airlines
17 Jun - 24 Jun Spirit Airlines
10 Jun - 17 Jun Spirit Airlines
26 Jun - 03 Jul Frontier Airlines
24 Jun - 01 Jul Spirit Airlines
25 Jun - 02 Jul Frontier Airlines
30 Jun - 07 Jul Frontier Airlines
27 Jun - 04 Jul Spirit Airlines
28 Jun - 05 Jul Spirit Airlines
29 Jun - 06 Jul Spirit Airlines
09 Jun - 09 Jul Air Canada

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

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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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