$672 Cheap Delta flights Washington (IAD) to Porto (OPO)

View $672 flight on Thu, Apr 23, 2026Opens in a new window

$672 Cheap Delta flights Washington (IAD) to Porto (OPO)

Prices were available within the past 7 days and start at $672 for one-way flights and $1,323 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Apr 23 - Fri, May 1
IAD
Washington
OPO
Porto
$1,323 Roundtrip, found 15 hours ago
$1,323
Roundtrip
found 15 hours ago
Select Delta flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $1,323 found 15 hours ago
Flights from Washington (IAD) to Porto (OPO)
Origin airport
Washington Dulles Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air France, British Airways, Brussels Airlines, Delta, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Popular airline
Turkish Airlines
Distance
5663 km