Cheap flights from Houston to Serra da Estrela

View AU$872 flight on Fri, 12 Sep. 2025Opens in a new window

Popular airlines from Houston to Serra da Estrela

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Houston (HOU) to Serra da Estrela (OPO)

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.

Turkish Airlines
Fri, 12 Sep. - Wed, 24 Sep.
IAH
Houston
LIS
Lisbon
AU$1,176 Return, found 2 days ago
AU$1,176
Return
found 2 days ago
Select Turkish Airlines flight, departing Fri, 12 Sep. from Houston to Lisbon, returning Wed, 24 Sep., priced at AU$1,176 found 2 days ago
United
Fri, 12 Sep. - Wed, 24 Sep.
IAH
Houston
LIS
Lisbon
AU$1,520 Return, found 2 days ago
AU$1,520
Return
found 2 days ago
Select United flight, departing Fri, 12 Sep. from Houston to Lisbon, returning Wed, 24 Sep., priced at AU$1,520 found 2 days ago
Delta
Fri, 12 Sep. - Wed, 24 Sep.
IAH
Houston
LIS
Lisbon
AU$1,567 Return, found 2 days ago
AU$1,567
Return
found 2 days ago
Select Delta flight, departing Fri, 12 Sep. from Houston to Lisbon, returning Wed, 24 Sep., priced at AU$1,567 found 2 days ago
British Airways
Fri, 12 Sep. - Wed, 24 Sep.
IAH
Houston
LIS
Lisbon
AU$1,612 Return, found 2 days ago
AU$1,612
Return
found 2 days ago
Select British Airways flight, departing Fri, 12 Sep. from Houston to Lisbon, returning Wed, 24 Sep., priced at AU$1,612 found 2 days ago
Air Canada
Sat, 30 Aug. - Sat, 6 Sep.
IAH
Houston
OPO
Porto
AU$1,623 Return, found 6 days ago
AU$1,623
Return
found 6 days ago
Select Air Canada flight, departing Sat, 30 Aug. from Houston to Porto, returning Sat, 6 Sep., priced at AU$1,623 found 6 days ago
KLM
Fri, 12 Sep. - Wed, 24 Sep.
IAH
Houston
LIS
Lisbon
AU$1,716 Return, found 2 days ago
AU$1,716
Return
found 2 days ago
Select KLM flight, departing Fri, 12 Sep. from Houston to Lisbon, returning Wed, 24 Sep., priced at AU$1,716 found 2 days ago

Find the cheapest month to fly from Houston (HOU) to Lisbon (LIS)

February is typically the cheapest month to fly

From AU$779 - AU$1,546 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.