With flights this cheap, there are bound to be a few rules. Frontier is offering the deals on flights between August 4 and August 30 and flights must be booked at least three days in advance.
From Chicago's O'Hare airport, the following routes were available as of Wednesday afternoon:
- $44 to Austin
- $49 to Colorado Springs
- $54 to Las Vegas
- $59 to Phoenix
- $59 to San Antonio
The lowest prices are reserved for members of Frontier's Discount Den program, but if you're not a member, the sale flights are only around $10 more.
Since Frontier is a budget airline, the ticket prices may not include carry-on bags or reserved seats.
To check out all the available flights, click here.