Cheap flights from Houston to Sintra-Cascais Natural Park

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

Popular airlines from Houston to Sintra-Cascais Natural Park

  • 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 Sintra-Cascais Natural Park (LIS)

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
Wed, 24 Sep. - Thu, 16 Oct.
IAH
Houston
LIS
Lisbon
AU$1,097 Return, found 1 hour ago
AU$1,097
Return
found 1 hour ago
Select Turkish Airlines flight, departing Wed, 24 Sep. from Houston to Lisbon, returning Thu, 16 Oct., priced at AU$1,097 found 1 hour ago
Delta
Wed, 24 Sep. - Thu, 16 Oct.
IAH
Houston
LIS
Lisbon
AU$1,218 Return, found 1 hour ago
AU$1,218
Return
found 1 hour ago
Select Delta flight, departing Wed, 24 Sep. from Houston to Lisbon, returning Thu, 16 Oct., priced at AU$1,218 found 1 hour ago
British Airways
Wed, 24 Sep. - Thu, 16 Oct.
IAH
Houston
LIS
Lisbon
AU$1,233 Return, found 1 hour ago
AU$1,233
Return
found 1 hour ago
Select British Airways flight, departing Wed, 24 Sep. from Houston to Lisbon, returning Thu, 16 Oct., priced at AU$1,233 found 1 hour ago
Air France
Wed, 24 Sep. - Thu, 16 Oct.
IAH
Houston
LIS
Lisbon
AU$1,297 Return, found 1 hour ago
AU$1,297
Return
found 1 hour ago
Select Air France flight, departing Wed, 24 Sep. from Houston to Lisbon, returning Thu, 16 Oct., priced at AU$1,297 found 1 hour ago
United
Wed, 24 Sep. - Thu, 16 Oct.
IAH
Houston
LIS
Lisbon
AU$1,313 Return, found 1 hour ago
AU$1,313
Return
found 1 hour ago
Select United flight, departing Wed, 24 Sep. from Houston to Lisbon, returning Thu, 16 Oct., priced at AU$1,313 found 1 hour ago
Air Canada
Wed, 24 Sep. - Thu, 16 Oct.
IAH
Houston
LIS
Lisbon
AU$1,323 Return, found 1 hour ago
AU$1,323
Return
found 1 hour ago
Select Air Canada flight, departing Wed, 24 Sep. from Houston to Lisbon, returning Thu, 16 Oct., priced at AU$1,323 found 1 hour 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.