Cheap flights from Boston to Leinster

View AU$282 flight on Sun, 26 Oct. 2025Opens in a new window

Popular airlines from Boston to Leinster

  • American Airlines

    American Airlines

  • Air Canada

    Air Canada

  • Air France

    Air France

  • British Airways

    British Airways

  • Delta

    Delta

  • Aer Lingus

    Aer Lingus

  • Icelandair

    Icelandair

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Boston (BOS) to Leinster (DUB)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, 13 Aug. - Thu, 21 Aug.
BOS
Boston
DUB
Dublin
AU$523 Return, found 4 days ago
AU$523
Return
found 4 days ago
Select Air Canada flight, departing Wed, 13 Aug. from Boston to Dublin, returning Thu, 21 Aug., priced at AU$523 found 4 days ago
United
Wed, 13 Aug. - Thu, 21 Aug.
BOS
Boston
DUB
Dublin
AU$523 Return, found 4 days ago
AU$523
Return
found 4 days ago
Select United flight, departing Wed, 13 Aug. from Boston to Dublin, returning Thu, 21 Aug., priced at AU$523 found 4 days ago
Aer Lingus
Sun, 26 Oct. - Tue, 4 Nov.
BOS
Boston
DUB
Dublin
AU$571 Return, found 12 hours ago
AU$571
Return
found 12 hours ago
Select Aer Lingus flight, departing Sun, 26 Oct. from Boston to Dublin, returning Tue, 4 Nov., priced at AU$571 found 12 hours ago
Icelandair
Sun, 26 Oct. - Tue, 4 Nov.
BOS
Boston
DUB
Dublin
AU$589 Return, found 12 hours ago
AU$589
Return
found 12 hours ago
Select Icelandair flight, departing Sun, 26 Oct. from Boston to Dublin, returning Tue, 4 Nov., priced at AU$589 found 12 hours ago
Swiss International Air Lines
Sun, 26 Oct. - Tue, 4 Nov.
BOS
Boston
DUB
Dublin
AU$610 Return, found 12 hours ago
AU$610
Return
found 12 hours ago
Select Swiss International Air Lines flight, departing Sun, 26 Oct. from Boston to Dublin, returning Tue, 4 Nov., priced at AU$610 found 12 hours ago
Delta
Mon, 18 Aug. - Wed, 27 Aug.
BOS
Boston
DUB
Dublin
AU$614 Return, found 1 day ago
AU$614
Return
found 1 day ago
Select Delta flight, departing Mon, 18 Aug. from Boston to Dublin, returning Wed, 27 Aug., priced at AU$614 found 1 day ago

Find the cheapest month to fly from Boston (BOS) to Dublin (DUB)

January is typically the cheapest month to fly

From AU$416 - AU$1,037 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.