AirHint found the following cheapest one-way flights from Toronto (YTZ) to Thunder Bay (YQT) in June 2025 (see full year).

One-Way flights

24 Jun	Porter Airlines (Canada) Ltd
29 Jun	Porter Airlines (Canada) Ltd
24 Jun	Porter Airlines (Canada) Ltd	direct
29 Jun	Porter Airlines (Canada) Ltd	direct
22 Jun	Porter Airlines (Canada) Ltd
17 Jun	Porter Airlines (Canada) Ltd
30 Jun	Porter Airlines (Canada) Ltd
17 Jun	Porter Airlines (Canada) Ltd	direct
22 Jun	Porter Airlines (Canada) Ltd	direct
19 Jun	Porter Airlines (Canada) Ltd

Also check the deals for return flights from Toronto to Thunder Bay in June.

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 one-way flights from Toronto to Thunder Bay in June from $105

One-Way flights