Frontier Airlines is offering its “GoWild!” unlimited flying pass for $599 the first year. If you don’t cancel it will auto-renew for $1999 the second year. It’s a brilliant way for the airline to monetize seats that are otherwise-likely to go empty, and can be a great deal for travelers living in major Frontier cities like Denver, Orlando and Las Vegas.
This lets you buy an unlimited number of domestic U.S. flights, booked the day prior to travel, for just $0.01 in airfare plus taxes and fees (or in most cases less than $15 per flight).