The ATR 42 and 72 aircraft are widely used on regional routes worldwide, primarily for shorter journeys. However, some routes operated by these turboprops extend beyond three hours. Data from Cirium highlights the ten longest ATR flights.
In tenth place is the route between Montréal and Saint Pierre, spanning 847 miles. Air Saint Pierre operates this service year-round with a block time of two hours and 45 minutes from Montréal to Saint Pierre, increasing to three hours and 25 minutes on the return.
Next is the Winnipeg to Sanikiluaq route in Canada, measuring 872 miles. Calm Air operates this corridor using its fleet of ATRs, scheduling 152 flights each way annually. The block time is three hours and 25 minutes from Winnipeg to Sanikiluaq and three hours and 30 minutes on the return.