Cheapest return flights from Washington to Lisbon in August from $893

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

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

Return flights

24 Aug - 29 Aug Air Canada
06 Aug - 11 Aug Air Canada
20 Aug - 27 Aug British Airways
24 Aug - 08 Sep Scandinavian Airlines
12 Aug - 19 Aug Air France
13 Aug - 20 Aug Air France
19 Aug - 26 Aug Air France
14 Aug - 21 Aug Air France
15 Aug - 22 Aug KLM
18 Aug - 25 Aug Air France
25 Aug - 31 Aug Scandinavian Airlines
25 Aug - 01 Sep Scandinavian Airlines
26 Aug - 02 Sep Condor
28 Aug - 04 Sep British Airways
31 Aug - 07 Sep Condor
27 Aug - 03 Sep Air France
29 Aug - 05 Sep Delta
31 Aug - 14 Sep TAP

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

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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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