Cheapest return flights from Washington to Lisbon in August from 767€

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

19 Aug - 26 Aug American Airlines
20 Aug - 27 Aug American Airlines
18 Aug - 25 Aug American Airlines
21 Aug - 28 Aug American Airlines
22 Aug - 29 Aug jetBlue
31 Aug - 08 Sep Condor
01 Aug - 08 Aug Air Canada
02 Aug - 09 Aug British Airways
30 Aug - 07 Sep Condor
14 Aug - 18 Aug British Airways
01 Aug - 07 Aug TAP

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

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon