Today only, Frontier Airlines offers select 1-way fares on 13 routes with prices starting at $18.99. That's the lowest price we could find for select routes by $23. This price is valid on flights departing from Atlanta, WA, (ATL) with arrival in Orlando, FL, (MCO) on December 8; prices vary depending on the departure cities and dates chosen. Book this travel deal today for travel from December 3 through December 17. Click here to see more routes.