In celebration of the launch of two new nonstop services from Northeast Florida Regional Airport (UST) in St. Augustine to Philadelphia International Airport (PHL) and to Chicago O’Hare International Airport (ORD), Frontier Airlines is offering low introductory fares. Flights between Northeast Florida Regional Airport and Chicago will operate on Tuesdays, Thursdays and Sundays, beginning April 14, with fares starting at $69 (64 percent lower than the $192 industry average), while flights to Philadelphia will operate on Mondays, Wednesdays, Fridays and Saturdays, beginning April 15, with fares starting at $79 (60 percent lower than the $198 industry average. For more information, visit flyfrontier.com.