Flights from Boston to Castleknock

Cheapest flights from Boston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jul 6 - Tue, Jul 22

BOS

Logan Intl.

DUB

Dublin

$412 Roundtrip, found 2 days ago

$412

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Jul 6 from Logan Intl. to Dublin, returning Tue, Jul 22, priced at $412 found 2 days ago

Tue, Jul 8 - Tue, Jul 22

BOS

Logan Intl.

DUB

Dublin

$417 Roundtrip, found 2 days ago

$417

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Tue, Jul 22, priced at $417 found 2 days ago

Sun, Jul 6 - Thu, Jul 24

BOS

Logan Intl.

DUB

Dublin

$421 Roundtrip, found 2 days ago

$421

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Jul 6 from Logan Intl. to Dublin, returning Thu, Jul 24, priced at $421 found 2 days ago

Tue, Jul 8 - Thu, Jul 24

BOS

Logan Intl.

DUB

Dublin

$426 Roundtrip, found 2 days ago

$426

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Thu, Jul 24, priced at $426 found 2 days ago

Sun, Jul 6 - Wed, Jul 23

BOS

Logan Intl.

DUB

Dublin

$438 Roundtrip, found 2 days ago

$438

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Jul 6 from Logan Intl. to Dublin, returning Wed, Jul 23, priced at $438 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$475 Roundtrip, found 2 days ago

$475

Roundtrip

found 2 days ago

Select United flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $475 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$477 Roundtrip, found 2 days ago

$477

Roundtrip

found 2 days ago

Select Air Canada flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $477 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$510 Roundtrip, found 2 days ago

$510

Roundtrip

found 2 days ago

Select British Airways flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $510 found 2 days ago

Sun, Jul 6 - Fri, Jul 18

BOS

Logan Intl.

DUB

Dublin

$534 Roundtrip, found 2 days ago

$534

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Jul 6 from Logan Intl. to Dublin, returning Fri, Jul 18, priced at $534 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$590 Roundtrip, found 2 days ago

$590

Roundtrip

found 2 days ago

Select Swiss International Air Lines flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $590 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$607 Roundtrip, found 2 days ago

$607

Roundtrip

found 2 days ago

Select Lufthansa flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $607 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$637 Roundtrip, found 2 days ago

$637

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $637 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$741 Roundtrip, found 2 days ago

$741

Roundtrip

found 2 days ago

Select American Airlines flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $741 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$777 Roundtrip, found 2 days ago

$777

Roundtrip

found 2 days ago

Select Austrian Airlines flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $777 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$936 Roundtrip, found 2 days ago

$936

Roundtrip

found 2 days ago

Select Aer Lingus flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $936 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$1,111 Roundtrip, found 2 days ago

$1,111

Roundtrip

found 2 days ago

Select Air France flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $1,111 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$1,121 Roundtrip, found 2 days ago

$1,121

Roundtrip

found 2 days ago

Select KLM flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $1,121 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$1,133 Roundtrip, found 2 days ago

$1,133

Roundtrip

found 2 days ago

Select Iberia flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $1,133 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$1,226 Roundtrip, found 2 days ago

$1,226

Roundtrip

found 2 days ago

Select Icelandair flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $1,226 found 2 days ago

Tue, Jul 8 - Mon, Jul 21

BOS

Logan Intl.

DUB

Dublin

$1,288 Roundtrip, found 2 days ago

$1,288

Roundtrip

found 2 days ago

Select TAP Portugal flight, departing Tue, Jul 8 from Logan Intl. to Dublin, returning Mon, Jul 21, priced at $1,288 found 2 days ago