Cheapest one-way flights from Washington to Lisbon in July from $336

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

One-Way flights

23 Jul Royal Air Maroc
31 Jul Icelandair
06 Jul Lufthansa
09 Jul Royal Air Maroc
10 Jul Porter Airlines (Canada) Ltd
09 Jul TAP direct
06 Jul TAP direct
10 Jul TAP direct
23 Jul TAP direct
31 Jul TAP direct

Also check the deals for return flights from Washington to Lisbon in July.

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