Frontier Airlines announced the expansion of summer service with eight new nonstop routes in key markets.The low-cost carrier revealed on Tuesday the new 2021 flights to popular cities, such as Chicago, Dallas, Denver, Las Vegas and Salt Lake City, as well as the addition of Alaska to Frontier’s network.ADVERTISING Trending Now Frontier senior vice president of commercial Daniel Shurz said the airline would offer fares as low as $19 to celebrate the new service.“Summer 2021 is quickly approaching, and we’re excited to expand our network with eight new routes beginning in June,” Shurz said. “We’re listening to our customers and adding routes to popular summer destinations known for their sun-filled activities.”At Frontier, we’re all about making it possible for more people to fly more often with affordable fares and convenient service,” Shurz continued.Earlier this year, Spirit launched a new loyalty program to provide customers with more opportunities to earn reward travel between flights. The new Free Spirit loyalty program is built around points, as rewards will be based on dollars spent instead of miles flown.Members can earn points on every booking, bag and Big Front Seat, plus purchases made with the new Free Spirit credit cards.Service ToService FromStart DateFrequencyIntro FareApplicable Days for Intro RateOntario, Calif.DallasJune 114x Weekly$39Monday, Wednesday, SaturdaySalt Lake CityDallasJune 103x Weekly$49Tuesday, ThursdayAnchorageDenverJune 92x Weekly$79To ANC: Wednesday / From ANC: ThursdayDurangoDenverJune 44x Weekly$19Monday, Wednesday, SaturdayGrand JunctionDenverJune 83x Weekly$19Tuesday, ThursdayKalispellDenverJune 173x Weekly$49Tuesday, ThursdayDurangoLas VegasJune 112x Weekly$49Monday, FridayChicagoSalt Lake CityJune 103x Weekly$49Tuesday, ThursdayDallasSalt Lake CityJune 103x Weekly$49Tuesday, Thursday Let's block ads! (Why?)