Cheap flights from Washington to Lisbon from CA $438

View CA $438 flight on Sun, Aug. 17, 2025Opens in a new window

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Cheap flights from Washington (WAS) to Lisbon (LIS)

Prices were available within the past 7 days and start at CA $438 for one-way flights and CA $584 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fly Play
Thu, Sep. 25 - Fri, Oct. 3
BWI
Baltimore
LIS
Lisbon
CA $584 Roundtrip, found 4 days ago
CA $584
Roundtrip
found 4 days ago
Select Fly Play flight, departing Thu, Sep. 25 from Baltimore to Lisbon, returning Fri, Oct. 3, priced at CA $584 found 4 days ago
Scandinavian Airlines
Thu, Nov. 27 - Wed, Dec. 3
IAD
Washington
LIS
Lisbon
CA $721 Roundtrip, found 5 days ago
CA $721
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Thu, Nov. 27 from Washington to Lisbon, returning Wed, Dec. 3, priced at CA $721 found 5 days ago
Royal Air Maroc
Wed, Oct. 15 - Thu, Oct. 23
IAD
Washington
LIS
Lisbon
CA $868 Roundtrip, found 2 days ago
CA $868
Roundtrip
found 2 days ago
Select Royal Air Maroc flight, departing Wed, Oct. 15 from Washington to Lisbon, returning Thu, Oct. 23, priced at CA $868 found 2 days ago
TAP Portugal
Tue, Oct. 14 - Thu, Oct. 23
IAD
Washington
LIS
Lisbon
CA $872 Roundtrip, found 4 days ago
CA $872
Roundtrip
found 4 days ago
Select TAP Portugal flight, departing Tue, Oct. 14 from Washington to Lisbon, returning Thu, Oct. 23, priced at CA $872 found 4 days ago
Turkish Airlines
Tue, Oct. 14 - Tue, Oct. 28
IAD
Washington
LIS
Lisbon
CA $881 Roundtrip, found 2 days ago
CA $881
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Tue, Oct. 14 from Washington to Lisbon, returning Tue, Oct. 28, priced at CA $881 found 2 days ago
Aer Lingus
Tue, Aug. 26 - Tue, Sep. 2
IAD
Washington
LIS
Lisbon
CA $904 Roundtrip, found 5 days ago
CA $904
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Tue, Aug. 26 from Washington to Lisbon, returning Tue, Sep. 2, priced at CA $904 found 5 days ago

Find the cheapest month to fly from Washington (WAS) to Lisbon (LIS)

November is typically the cheapest month to fly

From CA $528 - CA $1,283 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.