Frontier Airlines launched a one-day sale today where you can get one-way fares from seven cities for $20.15.  The flights must originate in Chicago O’Hare (ORD), Cincinnati Ohio (CVG), Cleveland Ohio (CLE), Denver (DEN), Phoenix (PHX), Trenton/Princeton NY (TTN) or Washington Dulles (IAD) and are bookable on sites like Orbitz and others.

Tickets must be purchased by Midnight Pacific Time on December 31, 2014 for travel January 6th thru February 11, 2015. Fares are one way and do not require round trip purchase.

How To Book Amazing Frontier Sale

• Look up sale flights using the charts below
• Search Orbitz and book these amazingly low fares on these flights

The specific flights are operated between these Frontier markets, and the full terms and conditions are listed below:

Bottom Line

Act fast, as this is a one day sale.  I was able to find some incredibly cheap fares to Atlanta for only $20 on Orbitz. There are lots of great city pairs included in the $20.15 sale, and keep in mind that you can book these tickets as one-way fares, not only as round trips.

Terms and Conditions: $20.15 Fares!

Tickets must be purchased by 11:59 pm Pacific time on Dec. 31, 2014 for domestic, nonstop travel on:  select markets and dates Jan. 6, 2015 through Feb. 11, 2015. Fares are one way and do not require roundtrip purchase.

Fare(s) shown includes all transportation fees, surcharges and taxes, and are subject to change without notice.  Seats are limited at these fares and certain flights and/or days of travel may be unavailable.

Depending on the fare type purchased, nonrefundable tickets may be transferred for a fee of up to $50, or reissued for alternate flights for a fee of up to $75, as well as a possible fare increase. The name change fee and itinerary change fee are not exclusive of each other. Previously purchased tickets may not be exchanged for these special fare tickets. Flight segment(s) must be cancelled prior to scheduled departure time or the ticket(s) and all monies will be forfeited. Tickets purchased at FlyFrontier.com or by calling Frontier’s reservations centers must be paid for at the time the reservation is made, but may be cancelled for a full refund without penalty up to 24 hours after the time of purchase. Additional travel services, such as baggage and advance seat assignments are available for purchase separately at an additional charge.

Some markets do not offer daily service. Schedules are subject to change without notice. Flights are operated by Frontier Airlines. Other restrictions may apply.