Aviation LCCs Allegiant and Frontier launching several new routes By Robert Silk / January 12, 2016 Share 1 -- Allegiant will launch 19 new routes and three new destinations between April and June, and Frontier has announced an additional 14 new routes that will launch between April and June as well as service to four new destinations. Frontier’s announcement comes just five days after the low-cost carrier released information on another 42 routes it will begin flying this spring, mainly connecting midsize markets to major destinations.Allegiant’s new destinations will be Baltimore; El Paso, Tex.; and Destin, Fla. Baltimore will get the most attention from the carrier, with the first two of its six routes launching on April 29. Allegiant will serve Destin with two routes with the first, to Cincinnati, taking flight on May 20. The two El Paso routes, to Las Vegas and San Diego, launch on May 6. The airline also announced additional routes to Savannah, San Diego, Jacksonville and New Orleans, among other destinations.Allegiant’s flights typically connect mid- and small-size markets without going through larger hubs. Fares don’t include carry-on baggage, advance seat assignments or several other items that Allegiant charges for a la carte. Allegiant typically flies routes on a less-than-daily basis.Frontier will add Colorado Springs; Columbus, Ohio; Pittsburgh; and San Antonio to its network of cities. The carrier’s lone route from Colorado Springs, going to Las Vegas, will take to the air on April 14. On May 31, Columbus to Denver will be the first of four routes Frontier will launch from the central Ohio city.Routes from Pittsburgh to five major destinations will begin on June 15 through June 17. Four Frontier routes from San Antonio will take to the sky between June 13 and June 15.Several of the new Frontier routes will operate daily, while others will be scheduled either three or four days per week. Frontier’s expansion, including the 42 routes it announced last week, is being facilitated by a nine-plane growth in its fleet over the course of 2016, the airline said. Like with Allegiant, Frontier fares don’t include carry-on baggage, advance seat assignments or several other items that Frontier charges for a la carte.