Frontier Airlines will add service to Minneapolis, Milwaukee and St. Louis out of Trenton-Mercer Airport in Ewing, according to The Times of Trenton.
The routes will begin June 13. The added destinations will bring Frontier's total destination routes out of Trenton-Mercer Airport to 17.
Frontier currently offers flights from Mercer County to Atlanta, Chicago-Midway, Columbus, Detroit, Raleigh/Durham, Fort Myers, Fort Lauderdale, Orlando, Tampa and New Orleans. The airline added Cincinnati and Charlotte earlier this month. Indianapolis and Nashville flights will begin in April.