Staring June 7, 2018, American Airlines will begin offering daily, non-stop service between Northwest Florida Beach International Airport in Panama City and both Charlotte Douglas (CLT) and Dallas/Fort Worth International airports. More details here.

Delta Air Lines adds new service between Cincinnati/Northern Kentucky International Airport (CVG) and both Austin (AUS) and Phoenix (PHX). Daily (except Saturday) service between CVG and Austin-Bergstrom International Airport starts May 1 and daily service between CVG and Phoenix Sky Harbor International Airport kicks off Nov. 4. The Atlanta-based carrier is also switching its summer seasonal non-stop between CVG to Seattle-Tacoma International Airport to year-round service as of March 2. More details here.

Delta also adds daily, nonstop, year-round service between Pittsburgh International Airport and Salt Lake City International on July 9. More details here.

Frontier Airlines will add four new cities to its route map this spring: Birmingham, Ala. (BHM) (starting April 11); Savannah/Hilton Head (SAV) (May 10); Myrtle Beach, S.C. (MYR) (May 20); and Branson, Mo. (BKG) (June 13). The Denver-based airline also announced increased service to 30 other cities it currently serves. Details here.

Southwest Airlines announced several new routes starting Aug. 7: daily non-stop service between St. Louis (STL) and Hartford, Conn. (BDL); between Cincinnati (CVG) and Denver (DEN); between Kansas City, Mo. (MCI) and Raleigh-Durham, N.C. (RDU); and between Los Angeles (LAX) and Tampa (TPA). Daily non-stop service between Kansas City, Mo., and Raleigh-Durham, N.C., begins Aug. 8. Also beginning Aug. 7: service between Nashville (BNA) and Atlanta (ATL) to operate five times a day during the week and three times a day Saturday and Sunday. More details about these flights and increased service to other cities here.