Frontier will also return to Boise Airport in Idaho (BOI) and Spokane International Airport in Washington (GEG) when it starts offering non-stop flights to Denver International Airport (DEN). Josh Flyr, vice president of network and operations design, Frontier Airlines, commented,

CLEVELAND, Ohio – Frontier Airlines is adding two new routes, to Boston and Nashville, to its growing list of destinations from Cleveland Hopkins International Airport. The new flights to Boston Logan International Airport will launch May 22 and run three times per week, on Sundays, Tuesdays and Thursdays.

For the introductory fare, tickets must be purchased by 11:59 p.m. on Feb. 24, with travel valid from May 15 to Aug. 18, 2025.