Cheapest one-way flights from Boston to Dublin in September from $276

AirHint found the following cheapest one-way flights from Boston (BOS) to Dublin (DUB) in September 2026 (see full year).

One-Way flights

02 Sep jetBlue
02 Sep Aer Lingus direct
28 Sep LEVEL
28 Sep Aer Lingus direct
24 Sep Iberia
29 Sep Iberia
03 Sep Aer Lingus direct
04 Sep Aer Lingus direct
01 Sep Aer Lingus direct
05 Sep Aer Lingus direct

Also check the deals for return flights from Boston to Dublin in September.

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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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