272 - 532 CAD
Travelling from most locations, it is best to book your flight to Thunder Bay during the month of March for the best deal, although there are other times of the year which offer great deals as well.
In general, most flyers find the cheapest time to book a flight to Thunder Bay is about 44 days prior.
On average, the cheapest flights to Thunder Bay are found when departing on a Thursday. Try to avoid departing on a Monday, as this is usually the most expensive day.
On average you can find the best deals on plane tickets to Thunder Bay when looking for flights with evening departure times.