AirHint found the following cheapest return flights from Nashville (BNA) to Dublin (DUB) in October 2025 (see full year).

Return flights

28 Oct - 01 Nov	Aer Lingus	direct
18 Oct - 01 Nov	Air Canada
15 Oct - 22 Oct	United
30 Oct - 06 Nov	United
18 Oct - 01 Nov	Aer Lingus	direct
25 Oct - 01 Nov	Aer Lingus	direct
09 Oct - 21 Oct	Air Canada
30 Oct - 03 Nov	Air Canada
01 Oct - 08 Oct	Air Canada
17 Oct - 31 Oct	Air Canada
12 Oct - 19 Oct	Aer Lingus	direct
03 Oct - 10 Oct	WestJet
20 Oct - 27 Oct	United
10 Oct - 17 Oct	United
14 Oct - 18 Oct	Spirit Airlines
04 Oct - 11 Oct	Spirit Airlines

Also check the deals for one-way flights from Nashville to Dublin in October.

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

Cheapest return flights from Nashville to Dublin in October from $497

Return flights