Cheapest return flights from Boston to Dublin in May from $377

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

Return flights

10 May - 17 May Air France direct
12 May - 20 May Air France direct
05 May - 19 May Air France direct
10 May - 15 May Air France direct
07 May - 16 May Delta
09 May - 30 May Air Canada
10 May - 30 May Air Canada
11 May - 06 Jun jetBlue
11 May - 18 May Air Canada
11 May - 19 May Air Canada
13 May - 21 May Air Canada
13 May - 06 Jun Iberia
13 May - 06 Jun Aer Lingus direct
27 May - 01 Jun British Airways
24 May - 13 Jun British Airways
29 May - 01 Jun British Airways
31 May - 20 Jun British Airways
27 May - 20 Jun British Airways
11 May - 06 Jun Aer Lingus direct
25 May - 01 Jun British Airways

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

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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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