Cheapest one-way flights from Washington to Lisbon in July from $311

Best time to book flights for Washington (IAD) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest one-way flights from Washington (IAD) to Lisbon (LIS) in July 2025 (see full year).

One-Way flights

14 Jul Frontier Airlines
18 Jul Frontier Airlines
19 Jul Frontier Airlines
13 Jul Frontier Airlines
11 Jul Frontier Airlines
13 Jul TAP direct
14 Jul TAP direct
08 Jul Royal Air Maroc
18 Jul TAP direct
19 Jul TAP direct

Also check the deals for return flights from Washington to Lisbon in July.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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