Know the Best Time to Ask
If you’ll travel during the lean months, before June 15 and after September 15, you could have a chance for a flight upgrade. Planes are not usually full during this time of year. Also, during Tuesdays, Wednesdays, and Saturdays, there are less passengers flying.
So, those are some ways you can get a flight upgrade. Flying business class can only be afforded by few passengers, and it’s a challenge to be given an upgrade. Dress and behave appropriately, and fly during the lean months. Who knows, your favorite airline might give you an upgrade as a frequent flyer passenger.