Cheapest return flights from Ontario to Dublin in June from $1109

Best time to book flights for Ontario (ONT) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to Dublin (DUB) in June 2025 (see full year).

Return flights

04 Jun - 18 Jun jetBlue
16 Jun - 24 Jun Iberia
17 Jun - 25 Jun Iberia
01 Jun - 09 Jun Iberia
03 Jun - 11 Jun Iberia
18 Jun - 26 Jun Iberia
22 Jun - 30 Jun Iberia
23 Jun - 01 Jul Iberia
24 Jun - 02 Jul Iberia
25 Jun - 03 Jul Iberia
04 Jun - 12 Jun Iberia
15 Jun - 23 Jun Iberia
15 Jun - 29 Jun Iberia
26 Jun - 04 Jul Iberia
29 Jun - 07 Jul Iberia
27 Jun - 05 Jul Iberia

Also check the deals for one-way flights from Ontario to Dublin in June.

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.

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