Flights from United States to Ireland from $ 388*

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Best prices for United flights from United States to Ireland

$
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*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

Best business class fares from United States to Ireland

$

Newark/New York (EWR)to

Dublin (DUB)
03/17/26 - 03/25/26

Roundtrip

Business

from
$ 2,926
Viewed: 19 hours ago

Chicago (ORD)to

Dublin (DUB)
07/21/26 - 07/28/26

Roundtrip

Business

from
$ 3,757
Viewed: 19 hours ago

Washington, D.C. (IAD)to

Dublin (DUB)
07/14/26 - 07/23/26

Roundtrip

Business

from
$ 4,057
Viewed: 21 hours ago

Denver (DEN)to

Dublin (DUB)
08/12/26 - 08/26/26

Roundtrip

Business

from
$ 4,845
Viewed: 17 hours ago

San Francisco (SFO)to

Dublin (DUB)
08/04/26 - 08/13/26

Roundtrip

Business

from
$ 4,562
Viewed: 23 hours ago

Houston (IAH)to

Dublin (DUB)
03/17/26 - 03/24/26

Roundtrip

Business

from
$ 2,944
Viewed: 20 hours ago

Newark/New York (EWR)to

Shannon (SNN)
04/03/26 - 04/07/26

Roundtrip

Business

from
$ 3,083
Viewed: 1 day ago

Chicago (ORD)to

Shannon (SNN)
07/28/26 - 08/04/26

Roundtrip

Business

from
$ 3,778
Viewed: 16 hours ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

Explore more United flights from United States to Ireland