^ For comparison, fleet ages as of 2018: Southwest, 10.7 years; JetBlue, 9.7 years; Spirit, 5.4 years; WestJet, 9.7 years; Volaris, 4.3 years, Allegiant, 17 years, VivaAerobús, 5.2 years; Sun Country, 14.4 years. Information from Airfleets.net: Southwest, JetBlue, Spirit, WestJet, Volaris, Allegiant, VivaAerobús, Sun Country. (listed airlines from List of largest airlines in North America)
Frontier Airlines is an American ultra low-cost carrier headquartered in Denver, Colorado. The eighth-largest commercial airline in the US, Frontier Airlines operates flights to over 100 destinations throughout the United States and six international destinations, and employs more than 3,000 air-travel professionals.[15] The carrier is a subsidiary and operating brand of Indigo Partners, LLC, and maintains a hub at Denver International Airport with numerous focus cities across the US. In August 2018, Frontier began connecting passengers with Mexican low-cost carrier Volaris under a codeshare agreement.[16]
JetBlue Airways Corporation (NASDAQ: JBLU), stylized as jetBlue, is an American low-cost airline headquartered in New York City. A major air carrier and the sixth-largest airline in the United States. JetBlue is headquartered in the Long Island City neighborhood of the New York City borough of Queens, with its main base at John F. Kennedy International Airport. It also maintains corporate offices in Cottonwood Heights, Utah[6][7] and Orlando, Florida.

In November 2012, Frontier started low-frequency service between Orlando International Airport and Trenton–Mercer Airport near Trenton, New Jersey,[40] which, at the time, had no commercial service. Frontier later expanded service several times from Trenton, and as of June 2016 services 11 destinations. Frontier currently bases three aircraft in Trenton.[citation needed] Trenton Mercer Airport lies roughly equidistant between Philadelphia International Airport and Newark Liberty International Airport.[citation needed]
Scheduled service began on October 15, 1998, between Las Vegas and the airline's original hub in Fresno, California, at the Fresno Yosemite International Airport, with Douglas DC-9-21 and McDonnell Douglas DC-9-51 jetliners. During the second half of 1999, the airline was operating nonstop flights between Fresno and Las Vegas, Burbank and Lake Tahoe, and Las Vegas and Lake Tahoe as well as flying one-stop direct service between Fresno and Lake Tahoe via Las Vegas.[9] Shortly after WinAir Airlines closed in 1999, Allegiant Air opened a small hub in Long Beach, CA (LGB) and in 2000 was operating nonstop flights to Fresno and Las Vegas in addition to Fresno-Las Vegas nonstop service.[10] Later in 2000, Allegiant continued to expand and was operating the only nonstop jet service between Lake Tahoe Airport from Long Beach in addition to operating new flights into Portland, Oregon and Reno with Portland-Reno and Reno-Fresno nonstops and direct one-stop service between Portland and Fresno via Reno.[11] Citing higher fuel costs as a major factor, Allegiant filed for Chapter 11 bankruptcy protection in 2000.[12]
They lost my hotel reservation the 1st time a couple of years ago.  I received a credit of $100 that I was told wouldn't expire.  Tried to use it for my flight a couple of days ago and it expired.  I booked my flight and paid extra to be able to choose my seat.  When logging into United to choose my seat, the only option other than where they put me (last row of the plane by bathrooms and in a middle seat) was to pay for a more premium seat, paying an extra $50.  Called Travelocity in hopes that someone would help make it right, but there was nothing they could do.  Customer service at it's finest.  I thought I would give them another chance but this was the last.  I've never EVER had a problem with Priceline and will continue to use them.  Just booked my car and hotel with them when Travelocity could have rectified the situation and got that business as well.
On August 4, 2008, the Associated Press reported that jetBlue would replace their recycled pillows and blankets with an "eco-friendly" pillow and blanket package that passengers would have to purchase for use. Each package will cost $7 and will include a $5 coupon from retailer Bed, Bath and Beyond. This decision is the latest in a series of moves designed to increase revenue. jetBlue told the Associated Press that it expects to collect $40 million from passengers selecting seats with extra legroom and $20 million from passengers paying $15 to check a second bag. As of September 8, 2008 JetBlue charges passengers $10–30 for an extended-leg-room seat depending on the length of the flight.[37]
The TWA Hotel is the TWA Flight Center structure currently being rebuilt as 505-room hotel, preserving the Eero Saarinen headhouse while replacing the structures on either side of the headhouse. Situated in front of JetBlue's JFK terminal, JetBlue has stated that it estimates the ownership of the hotel would be between 5–10% of the final total investment.[138] The hotel will be an effective replacement for the Ramada Plaza JFK Hotel on the north end of the airport grounds in Building 144, which closed in 2009. 

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]
^ Jump up to: a b c "JetBlue 2017 Annual Report" (PDF). p. 8. Retrieved 2018-09-19. We are a predominately point-to-point system carrier, with the majority of our routes touching at least one of our six Focus Cities: New York, Boston, Fort Lauderdale-Hollywood, Orlando, Long Beach and San Juan, Puerto Rico. During 2017, over 92% of our Customers flew on nonstop itineraries.
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.
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.
Like Ryanair, the low-cost airline founded by the Ryan family of Ireland, who also have invested in Allegiant, the airline seeks ancillary revenue to supplement ticket revenue.[13] These ancillary fees include those for checking luggage, carrying on luggage (other than a small personal item), buying food and drinks on board, obtaining advance seat assignments, and more.[33][40][41] Allegiant CEO Maurice Gallagher said in 2009, "We collect $110 from you at the end of your trip. If I tried to charge you $110 up front, you wouldn't pay it. But if I sell you a $75 ticket and you self-select the rest, you will."[42] 

In January 2010, the airline celebrated its one-millionth passenger to fly out of Phoenix-Mesa Gateway Airport. Allegiant's parent company also announced that it had purchased 18 new MD-80 aircraft from Scandinavian Airlines.[20] In February 2010, Allegiant opened its ninth base at Grand Rapids' Gerald R. Ford International Airport in Michigan. The airline based two McDonnell Douglas MD-80 aircraft in Grand Rapids, but ended their airport's status in 2011. The airline continues to fly out of Grand Rapids in a reduced capacity.[21]
In March 2011, Allegiant took over charter service to Wendover Airport for Peppermill Casinos, Inc. to shuttle customers to Peppermill's three casinos in West Wendover, Nevada; the Montego Bay Resort, the Rainbow Wendover and the Peppermill Wendover.[45] Allegiant based one 150-seat, MD-80 series jet aircraft in Wendover and more than 20 employees, including maintenance, flight crews and stations personnel.[46]
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