Delta Airlines offers select roundtrip fares in the U.S. with prices starting at $186.20. (Click on "Delta.com" in the top line to see this sale; all taxes are included.) That's the lowest base rate we could find for select routes by $56. This price is valid on flights departing from New York, NY, (LGA) with arrival in Miami, FL, (MIA) on January 20, 2015 with return on January 27, 2015; prices vary depending on the departure cities and dates chosen. Book this travel deal by December 29 for travel January 7, 2015 through February 28, 2015. Click here to see more routes.