Today only, Frontier Airlines offers select 1-way fares on select routes with prices starting at $42.10. That's the lowest price we could find for select routes by $148. This price is valid on flights departing from Washington D.C. (IAD) with arrival in Cleveland, OH, (CLE) on December 19; prices vary depending on the departure cities and dates chosen. Book this travel deal today for travel on select dates from September 23 through December 17. Click here to see more routes.