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

Monday, July 20th, 2026

5 round-trip options

Returning
Sat, Jul 25, 2026•5 Day Trip
$1,314 USD
Google Flights
Returning
Sun, Jul 26, 2026•6 Day Trip
$1,154 USD
Google Flights
Returning
Tue, Jul 28, 2026•8 Day Trip
$1,183 USD
Google Flights
Returning
Fri, Jul 31, 2026•11 Day Trip
$1,183 USD
Google Flights
Returning
Sat, Aug 1, 2026•12 Day Trip
$1,154 USD
Google Flights