Cheapest one-way flights from Washington (IAD) to Lisbon (LIS), July

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
28 Jul Porter Airlines (Canada) Ltd
29 Jul Porter Airlines (Canada) Ltd
26 Jul Porter Airlines (Canada) Ltd
18 Jul Frontier Airlines
21 Jul Air Canada
30 Jul Frontier Airlines
21 Jul TAP
Direct Flight
26 Jul TAP
Direct Flight
29 Jul TAP
Direct Flight
28 Jul TAP
Direct Flight
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Updated Jul 12, 2026.

About these fares

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