Cheap flights from Porto to Southwest Houston

View AU$1,714 flight on Thu, 14 Aug. 2025Opens in a new window

Popular airlines from Porto to Southwest Houston

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Porto (OPO) to Southwest Houston (HOU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Porto (OPO) to Houston (IAH)

January is typically the cheapest month to fly

From AU$1,055 - AU$2,511 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.