Cheapest return flights from Washington to Lisbon in July from $587

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

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

Return flights

17 Jul - 24 Jul ITA Airways
14 Jul - 24 Jul ITA Airways
14 Jul - 29 Jul Air Canada
07 Jul - 17 Jul ITA Airways
28 Jul - 05 Aug Aer Lingus
01 Jul - 09 Jul SWISS
07 Jul - 14 Jul SWISS
10 Jul - 24 Jul Aer Lingus
28 Jul - 04 Aug Air Canada
01 Jul - 07 Jul SWISS
16 Jul - 25 Jul Air Canada
07 Jul - 15 Jul Icelandair
30 Jul - 05 Aug Air Canada
26 Jul - 03 Aug Aer Lingus
25 Jul - 03 Aug Aer Lingus
27 Jul - 04 Aug Lufthansa
27 Jul - 11 Aug KLM
26 Jul - 04 Aug Lufthansa
21 Jul - 11 Aug British Airways
30 Jul - 11 Aug Air France

Also check the deals for one-way flights from Washington to Lisbon in July.

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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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