Allegiant aims primarily to serve leisure travelers, particularly those in colder northern climates, going to warm-weather tourist destinations such as Punta Gorda, Tampa Bay, Las Vegas, Orlando, Los Angeles and Phoenix.[32] It also serves smaller destinations that see few direct flights by major carriers. Many of the airline's markets, such as Peoria, Illinois, are served only by commuter service requiring a connection at an airline hub.[33] In October 2009, Allegiant had competition on just five of its 136 routes.[34]

LIARS & SCAMMERS.  Don't trust anything.  Made a reservation for a rental car in Denver (Advantage) for a funeral trip.  After waiting in line for an hour with only 3 agents helping a mass of people, the rental agent, "Aric," offered us a Yukon XL in place of the Camry we reserved.  He said it was because we had waited in line for an hour and we were in Denver for a funeral.  He said, "I'm going to give you guys a Yukon and free gas as well."  We asked repeatedly if this would change the price because we didn't want to pay any extra.  He told us to return the vehicle empty.  He assured us more than once that this was just his gift to us and there would be no extra cost.   He also added an additional driver also at no cost, so he said.  The Yukon reeked of cigarette smoke and was very dirty but after waiting in line so long we just bought Febreeze and dealt with it ourselves.  Aric made sure to ask us for a nice survey and recommendation when we got home as well. Our reservation was for $125.95 but we were charged $438.54!!  Now wasting time fighting this. Unbelievable.
Allegiant Air was founded in January 1997 by Mitch Allee (owner, CEO), Jim Patterson (president) and Dave Beadle (chief pilot), under the name WestJet Express.[1] After losing a trademark dispute with West Jet Air Center of Rapid City, South Dakota and recognizing the name's similarity to WestJet Airlines of Canada, the airline adopted the name Allegiant Air and received FAA and DOT certification for scheduled and charter domestic operations on June 19, 1998. The airline also has authority for charter service to Canada and Mexico.[8]
The bankruptcy allowed Maurice J. Gallagher Jr., one of the airline's major creditors, to gain control of the business. A veteran leader of low-cost airlines, Gallagher had worked with WestAir and as CEO of ValuJet Airlines. In June 2001, Gallagher restructured Allegiant to a low-cost model, focusing on smaller markets that larger airlines did not serve with mainline aircraft. Allegiant's headquarters and operations were also moved to Las Vegas.[13]
Frontier Airlines (F9) is a Denver-based low-cost carrier. The carrier flies to about 65 destinations in the United States, Costa Rica, the Dominican Republic, Jamaica and Mexico. Its fleet of planes each feature a single Economy Class cabin. However, passengers can upgrade to Select Seating, which is located toward the front of the plane, or Stretch Seating, which features more legroom. Frontier's hub is based at Denver International Airport (DEN). An additional eight airports have been designated as focus cities. The airline has a codeshare agreement with Great Lakes Airlines.
Allegiant also transports firefighters for the United States Forest Service as well as college basketball teams.[44] Allegiant had a contract to supply charter flights from Miami to four cities in Cuba beginning June 2009. One aircraft was committed to the contract.[44] The contract was for fixed-fee flying, meaning all the airline was required to do was provide the dry aircraft and the flight crew. The contractor was responsible for all other costs including fuel. However, Allegiant ended this service in August 2009.[47] 

Dave Siegel took the chief executive officer role in January 2012.[62] Siegel's tenure ran through May 2015, when he left for personal reasons and was succeeded by the company's chairman, Bill Franke, who would manage strategy and finances.[62] In April 2014, Barry L. Biffle was appointed as the company's president, reporting to Siegel;[63] after Siegel's departure, Biffle was charged with managing the company's day-to-day operations.[62]
Allegiant already flies into many major airports, including McCarran International (Las Vegas) and Fort Lauderdale-Hollywood International Airport. In June 2013, Allegiant deviated from this strategy with plans to compete with Southwest Airlines by offering direct flights between Las Vegas and Austin, a medium hub served by 10 carriers with non-stop routes to over 40 destinations. The airline also flies less frequently compared to the major airlines, operating routes two or three times per week. That requires fewer crews and allows less time-pressured aircraft maintenance.
Advanced Air Air Choice One Air Flamenco Air Sunshine Bering Air Boutique Air Everts Air Frontier Flying Service Gem Air Grand Canyon Airlines Grand Canyon Scenic Airlines Grant Aviation Griffing Flying Service Hageland Aviation Services Island Airways JetSuiteX Kenmore Air Key Lime Air Makani Kai Air Mokulele Airlines New England Airlines Penobscot Island Air Reliant Air Rectrix Aviation San Juan Airlines Scenic Airlines Seaborne Airlines Servant Air Southern Airways Express Star Marianas Air Surf Air Taquan Air Tradewind Aviation Tropic Ocean Airways Ultimate Air Shuttle Utah Airways Vieques Air Link Warbelow's Air Ventures Wright Air Service
I was a frontier fly club member for a whole year and found that their website was way to confusing to use. They would advertise a promotion but then when I clicked it and would attempt to purchase the travel itinerary it would always go up. It was disappointing. Specially because I paid a membership fee and wanted to travel. Customer service over the phone was no help. Wouldn’t do it again. Stopped flying with them over all.
On July 1, 2010 Allegiant returned to Long Beach Airport (LGB) in Long Beach, California having previously served LGB with DC-9 jets with nonstop flights to Las Vegas (LAS) and Lake Tahoe (TVL) in 2000.[22][23] The airline also intended to fly from Bellingham International Airport and Stockton several times a week; however, there is no service at present flown between these two cities although Allegiant continues to serve Stockton with flights to Las Vegas, Phoenix/Mesa and San Diego.[24] In November 2011, Allegiant closed its Long Beach facility and consolidated all Los Angeles area flights at Los Angeles International (LAX).
On October 22, 2008, jetBlue opened its new primary hub at John F. Kennedy International Airport (JFK), Terminal 5, or simply T5. The mostly new terminal, costing approximately $800 million,[41] partially encircles the historic TWA Flight Center, the former Trans World Airlines terminal designed by Eero Saarinen, which remains closed. According to the plan, passengers will eventually be able to check in for flights in the landmark building, then transfer to the new structure via the original passenger departing-arrival tubes from Saarinen's original terminal and its 1969 addition by Roche-Dinkeloo.[42]

On July 1, 2010 Allegiant returned to Long Beach Airport (LGB) in Long Beach, California having previously served LGB with DC-9 jets with nonstop flights to Las Vegas (LAS) and Lake Tahoe (TVL) in 2000.[22][23] The airline also intended to fly from Bellingham International Airport and Stockton several times a week; however, there is no service at present flown between these two cities although Allegiant continues to serve Stockton with flights to Las Vegas, Phoenix/Mesa and San Diego.[24] In November 2011, Allegiant closed its Long Beach facility and consolidated all Los Angeles area flights at Los Angeles International (LAX).

×