Dublin (DUB) to Washington (IAD) flight deal in economy from $579

Aer LingusEIAer Lingus
Round Trip•Economy
IrelandDUB

Dublin Airport

Dublin, Ireland
United StatesIAD

Washington Dulles International Airport

Washington, United States
$814 USD
-29%$579 USD
Verified about 5 hours ago
Extremely Rare Availability
2% of dates checked are available within 10% of the lowest price

Sunday, December 20th, 2026

6 round-trip options

Returning
Fri, Dec 25, 2026•5 Day Trip
$1,123 USD
Google Flights
Returning
Sat, Dec 26, 2026•6 Day Trip
$961 USD
Google Flights
Returning
Tue, Dec 29, 2026•9 Day Trip
$790 USD
Google Flights
Returning
Wed, Dec 30, 2026•10 Day Trip
$790 USD
Google Flights
Returning
Thu, Dec 31, 2026•11 Day Trip
$790 USD
Google Flights
Returning
Fri, Jan 1, 2027•12 Day Trip
$790 USD
Google Flights