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Find the Cheapest Flights to Portugal

Unlock the cheapest flights and the best airfares to Portugal. Make your dream trip both memorable and affordable!

Airline TAP Portugal icon
Fri, May 8WAS-OPO
TAP Portugal
oneway$463
Airline Icelandair icon
Thu, May 7WAS-LIS
Icelandair
oneway$519
Airline United Airlines icon
Wed, Apr 22WAS-PDL
United Airlines
oneway$593
Airline Turkish Airlines icon
Tue, Sep 1WAS-OPO
Turkish Airlines
$771

Washington Dulles International Airport to Portugal: Flight information

Cheapest flight found$463
Cheapest month to flyMay
Most popular airlineTAP Portugal
Average flight duration1d 8h 45m

Cheapest flight found

May 2026

$519

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