Cheapest return flights from Boston to Dublin in May from $318

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

Return flights

05 May - 10 May Icelandair
05 May - 13 May jetBlue direct
01 May - 12 May Icelandair
02 May - 09 May Icelandair
09 May - 19 May Icelandair
02 May - 13 May Icelandair
01 May - 09 May Icelandair
02 May - 13 May jetBlue direct
04 May - 11 May jetBlue
08 May - 22 May Icelandair
18 May - 02 Jun jetBlue
18 May - 01 Jun jetBlue
19 May - 02 Jun Delta direct
31 May - 15 Jun Air France direct
30 May - 02 Jun Aer Lingus direct
23 May - 02 Jun Aer Lingus direct
18 May - 01 Jun Aer Lingus direct
29 May - 05 Jun Aer Lingus direct
28 May - 16 Jun Iberia
31 May - 03 Jun Aer Lingus direct

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

Powered by

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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Feel free to contact us with any feedback or request another flight research.