OPO to IAD from $641 in economy – flightdeals.net

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Iberia Airlines

IBIberia Airlines

Round Trip•Economy

Francisco Sá Carneiro Airport

Porto, Portugal

Washington Dulles International Airport

Washington, United States

$817 USD

-22%$641 USD

Verified 13 days ago

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$1,121 6$858 7$858 8$790 9$790 10$790 11$790 12$784 13$784 14$721 15$721 16$784 17$842 18$784 19$830 20$1,012 21$721 22$721 23$721 24$721 25$721 26$721 27$721 28$721 29$721 30$784 31$1,037 1$842 2$930

Good Availability

51% of dates checked are available within 10% of the lowest price

Tuesday, July 28th, 2026

5 round-trip options

Returning

Mon, Aug 3, 2026•6 Day Trip

$721 USD

Returning

Wed, Aug 5, 2026•8 Day Trip

$721 USD

Returning

Thu, Aug 6, 2026•9 Day Trip

$721 USD

Returning

Sat, Aug 8, 2026•11 Day Trip

$1,038 USD

Returning

Tue, Aug 11, 2026•14 Day Trip

$721 USD