Cheap flights from Philadelphia to Sintra-Cascais Natural Park

View AU$624 flight on Tue, 21 Apr. 2026Opens in a new window

Popular airlines from Philadelphia 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

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Cheap Flights from Philadelphia (ILG) 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.

Find the cheapest month to fly from Philadelphia (PHL) to Lisbon (LIS)

November is typically the cheapest month to fly

From AU$702 - AU$1,859 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.