AirHint found the following cheapest return flights from Boston (BOS) to Dublin (DUB) in April 2026 (see full year).

Return flights

05 Apr - 12 Apr	Air Canada
26 Apr - 06 May	Air France	direct
28 Apr - 08 May	Air France	direct
03 Apr - 10 Apr	SWISS
14 Apr - 22 Apr	Air Canada
01 Apr - 14 Apr	Delta
20 Apr - 30 Apr	Air France
05 Apr - 12 Apr	KLM	direct
08 Apr - 13 Apr	SWISS
30 Apr - 05 May	Air France	direct
01 Apr - 06 Apr	Delta
08 Apr - 12 Apr	Air Canada
04 Apr - 12 Apr	Air Canada
25 Apr - 04 May	Air Canada
25 Apr - 04 May	Aer Lingus	direct
30 Apr - 04 May	Aer Lingus	direct
28 Apr - 01 May	Aer Lingus	direct
25 Apr - 02 May	Aer Lingus	direct
17 Apr - 01 May	Aer Lingus	direct

Also check the deals for one-way flights from Boston to Dublin in April.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Boston to Dublin in April from 296€

Return flights