Frontier Airlines for less money? Because fewer people are flying on Tuesdays, Wednesdays, and Saturdays , these are typically the cheapest days to book . Prices are usually higher on Fridays and Sundays , however, as these are the busiest travel days.
Avoid traveling on Fridays and Sundays when fares increase to get the best bargains. For cheaper rates, schedule your trip for Tuesdays, Wednesdays, or Saturdays instead.