Cheapest return flights from Washington to Lisbon in July from 872€

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

Return flights

18 Jul - 31 Jul Royal Air Maroc
18 Jul - 31 Jul TAP direct
24 Jul - 04 Aug KLM

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

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