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

Return flights

16 Mar - 19 Mar	Iberia For Level
09 Mar - 16 Mar	Scandinavian Airlines
18 Mar - 21 Mar	Scandinavian Airlines
19 Mar - 02 Apr	Icelandair
15 Mar - 18 Mar	Icelandair
13 Mar - 28 Mar	Icelandair
28 Mar - 04 Apr	British Airways
28 Mar - 04 Apr	Aer Lingus	direct
13 Mar - 28 Mar	Aer Lingus	direct
19 Mar - 02 Apr	Aer Lingus	direct
18 Mar - 21 Mar	Aer Lingus	direct
15 Mar - 18 Mar	Air France	direct

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

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 Dublin to Boston in March from 337€

Return flights