Flights from Houston to Porto from $ 891*
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1 Passenger, Economy
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today
today
More United deals on Houston (IAH) to Porto (OPO) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 08/17/26 - 09/05/26 | from $ 891 Viewed: 7 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 08/17/26 - 09/06/26 | from $ 898 Viewed: 7 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 08/18/26 - 09/06/26 | from $ 898 Viewed: 7 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 07/07/26 - 07/14/26 | from $ 919 Viewed: 6 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 08/06/26 - 08/20/26 | from $ 927 Viewed: 6 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 09/02/26 - 09/09/26 | from $ 931 Viewed: 5 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 08/05/26 - 08/12/26 | from $ 934 Viewed: 6 hours ago |
| Houston (IAH) | Porto (OPO) | Roundtrip | Economy | 07/28/26 - 08/04/26 | from $ 934 Viewed: 6 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
