Cheapest return flights from Ottawa to Dublin in September from 482€

AirHint found the following cheapest return flights from Ottawa (YOW) to Dublin (DUB) in September 2025 (see full year).

Return flights

26 Sep - 08 Oct WestJet
18 Sep - 25 Sep Porter Airlines (Canada) Ltd
20 Sep - 26 Sep WestJet
02 Sep - 09 Sep Air Canada
03 Sep - 10 Sep Air Canada
16 Sep - 23 Sep Air Canada
01 Sep - 08 Sep Air Canada
28 Sep - 05 Oct Air Canada
23 Sep - 30 Sep WestJet
30 Sep - 14 Oct Air Canada
16 Sep - 30 Sep WestJet
22 Sep - 29 Sep Air Transat
24 Sep - 01 Oct Aer Lingus

Also check the deals for one-way flights from Ottawa to Dublin in September.

Skyscanner

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.