If you find it more convenient to depart from Toronto's downtown Billy Bishop airport located on Toronto Island, you can book flights to Thunder Bay with Porter Airlines. Porter also offers several flights a day with morning, afternoon and evening departures.
The average travel duration time between Ottawa and Thunder Bay is less than four hours with an average round trip fare of $250 including fees and taxes.
Bearskin Airlines also offers flights to Thunder Bay from Winnipeg. You will however make 2 or 3 stops which may include Dryden, Sioux Lookout and Red Lake
The average round trip fare for either airline is currently showing around $325 including fees and taxes.
Sioux Lookout: Sioux Lookout is a major hub airport for northern travel making it the busies airport north of Thunder Bay. There are numerous scheduled and charter airlines providing service in and out of Sioux Lookout and between Thunder Bay.
The following regional airlines provide scheduled service into Sioux Lookout
North Star Air
Slate Falls Airways
Red Lake: The Red Lake district is a very busy community built primarily on the gold mining industry. Flights in and out of Red Lake are kpt busy transporting mine workers, support industry personell, local residents an in the summer months a high volume of fishermen. Bearskin Airlines and Wasaya Airways provide regular scheduled flights between Red Lake and Thunder Bay. Wasaya and North Star Air provide scheduled service between Red Lake and many of the northern communities including Sioux Lookout.
Dryden: The town of Dryden enjoys regular scheduled flight service by Bearskin Airlines. You can fly Bearskin from Dryden to Thunder Bay - plus you can connect with many of the other regional communities such as Sioux Lookout, Red Lake, Kenora and Fort Frances as well as Winnipeg.
Kenora: Bearskin Airlines also serves the northwestern ontario community of Kenora.You can fly between Kenora and Thunder Bay with stops either in Sioux Lookout and Dryden or stops in Fort Frances.
Fort Frances: Bearskin Airlines has direct flights between Fort Frances and Thunder Bay.
Sudbury: You have a few flight options when it comes to flying between Sudbury and Thunder Bay. You can fly Bearskin Airlines which has a direct flight to Sudbury from Thunder Bay or you can fly Air Canada / Porter Airlines or WestJet. These three airlines do not have direct flights between Sudbury and Thunder Bay - all flights require a stop and plane change in Toronto.