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Cheapest return flights from Washington (IAD) to Lisbon (LIS)

Overview for the next 12 months — click a month to see all dates.

All destinations from Washington (IAD)

Lowest fare by month
Month	Price
July 2026	939 €
August 2026	540 €
September 2026	655 €
October 2026	658 €
November 2026	927 €
December 2026	664 €
January 2027	Check
February 2027	585 €
March 2027	Check
April 2027	Check
May 2027	Check
June 2027	Check

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Updated Jul 2, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest return flights from Washington (IAD) to Lisbon (LIS)

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