Cheapest return flights from Washington to Lisbon in May from 626€

AirHint found the following cheapest return flights from Washington (DCA) to Lisbon (LIS) in May 2026 (see full year).

Return flights

04 May - 11 May Air France
18 May - 23 May Scandinavian Airlines
06 May - 13 May Scandinavian Airlines
05 May - 12 May jetBlue
01 May - 08 May Air Canada
03 May - 10 May Air Canada
02 May - 09 May jetBlue
07 May - 14 May jetBlue
24 May - 31 May Air Canada
19 May - 26 May Air Canada
27 May - 07 Jun TAP
31 May - 15 Jun Delta

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

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