Update: this popular deal may have sold out. See more deals >
Frontier Airlines is offering cheap fares on 65 domestic routes, starting at $108 round-trip. You can fly right through the summer and early autumn. These are the rules:
– Travel period is now through September 8.
– Fly any day of the week.
– Sale prices are one-way; round-trip purchase not required.
– 21-day advance purchase required.
– No travel on May 23-25, 27, and July 6-7.
– Book flights by 11:59pm ET March 25