Frontier Flights As Low As $39 Each Way & More
Flights must be purchased at least 7 days in advance and you must travel by June 13th, 2018. Head here for more restrictions and exclusions.
Keep in mind that tickets are non-refundable and a 14-day advance purchase is required. Discounted travel for the continental US is valid from May 8th to June 13th and August 21st to October 31st, 2018. Travel for San Juan, Puerto Rico is valid September 5th to October 31st, 2018. International travel is valid from August 21st until October 31st, 2018.
Head here for more restrictions and exclusions.