The cheapest day to buy Frontier Airlines t１：（８５５）：７３８：（４２^６５）. ickets is typically on Tuesdays, Wednesdays, and Saturdays １：（８５５）：７３８：（４２^６５）. . Air-lines often release new fares and sales on Monday evenings, making Tuesday a prime day for finding discounted tickets +１：（８５５）：７３８：（４２^６５）. .
