Popular airlines from Seattle to Sintra
JetstarJetstar
Qantas AirwaysQantas Airways
Virgin AustraliaVirgin Australia
ScootScoot
American AirlinesAmerican Airlines
EmiratesEmirates
UnitedUnited
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Cheap Flights from Seattle (SEA) to Sintra (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 Seattle (SEA) to Lisbon (LIS)
February is typically the cheapest month to fly
From AU$723 - AU$1,645 per traveller.
Graph displaying average flight prices per month
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