Cheapest return flights from Washington to Lisbon in July from 647€

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

Return flights

14 Jul - 21 Jul Royal Air Maroc
16 Jul - 23 Jul Royal Air Maroc
17 Jul - 24 Jul Royal Air Maroc
20 Jul - 27 Jul Royal Air Maroc
21 Jul - 28 Jul Royal Air Maroc
22 Jul - 29 Jul Royal Air Maroc
23 Jul - 30 Jul Royal Air Maroc
07 Jul - 16 Jul Royal Air Maroc
27 Jul - 03 Aug Royal Air Maroc
19 Jul - 26 Jul Royal Air Maroc
15 Jul - 22 Jul Royal Air Maroc
30 Jul - 06 Aug Royal Air Maroc
28 Jul - 04 Aug Royal Air Maroc
29 Jul - 05 Aug Royal Air Maroc
25 Jul - 01 Aug Royal Air Maroc
26 Jul - 02 Aug Royal Air Maroc
31 Jul - 07 Aug Royal Air Maroc
28 Jul - 04 Aug TAP direct
28 Jul - 11 Aug TAP direct
29 Jul - 05 Aug TAP direct

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

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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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