How many hours does it take to fly 420 miles at 550 mph?

To calculate the flight time, you can use the formula: time = distance ÷ speed. For a distance of 420 miles at a speed of 550 mph, the calculation would be 420 ÷ 550, which equals approximately 0.76 hours. Converting this to minutes, it takes about 45.5 minutes to fly 420 miles at that speed.