Update: this popular deal may have sold out. See more deals >
Frontier Airlines has just cut prices on 26 domestic routes and the fares are cheaper than usual. But the sale is valid for today only.
These are the rules:
– Travel dates vary on each route. You can fly on selected dates in September, October and November.
– Sale fares are one-way only; round-trip purchase not required.
– Book flights by 11:59pm ET tonight.