Editing Frontier Airlines (section)

=== 2010s ===
[[File:Frontier Airlines, Airbus A320-200 N221FR ORD (30098597790).jpg|thumb|Frontier Airbus A320-200 in the 2013 livery]]
Upon the full merger and integration of Frontier and Midwest Airlines in October 2010, Frontier and its regional partners operated over 100 daily flights from the Milwaukee hub. However, on September 9, 2011, Frontier notified the public of a 40% reduction of arriving and departing flights from MKE. Along with this reduction of flights, the company laid off approximately 140 employees from the MKE station. This included but was not limited to: maintenance, grooming services, flight-line and gate.<ref>{{cite news | url= http://www.todaystmj4.com/news/local/129554838.html | title=Frontier Airlines layoffs | work=Todaystmj4.com | date=September 9, 2011 | access-date=September 9, 2011 | archive-url= https://web.archive.org/web/20120818162527/http://www.todaystmj4.com/news/local/129554838.html | archive-date=August 18, 2012 | url-status= dead }}</ref>

In February 2012, Frontier Airlines further reduced service to Milwaukee by cutting five more nonstop routes. This move "reduced Frontier's daily departing flights out of Mitchell International from 32 to 18," or 56%. Frontier announced further layoffs in conjunction with this route change: up to 446 Milwaukee-area employees were affected by the job cuts that occurred between April 15 and 30, 2012.<ref>{{cite journal |last=Andersen |first=Mark E |date=February 17, 2012 |title=Wisconsin: The Republican 'laser focus' on jobs strikes again |url=https://www.dailykos.com/stories/2012/2/17/1064641/-Wisconsin-The-Republican-laser-focus-on-jobs-strikes-again |journal=Daily Kos Labor |archive-url=https://web.archive.org/web/20231011073029/https://www.dailykos.com/stories/2012/2/17/1064641/-Wisconsin-The-Republican-laser-focus-on-jobs-strikes-again#:~:text=Just%20over%20two%20years%20after,over%20Midwest%20Airlines%20in%202009. |archive-date=October 11, 2023 |access-date=October 10, 2023 |url-status=live }}</ref>

In an effort to focus on regional contract flights for major carriers, Republic Airways Holdings announced in January 2012 its intention to sell or spin off Frontier.<ref name="prIndigoAcquires">{{cite news |date=February 24, 2020 |title=Frontier Airlines Check in |work= |url=https://airlinespolicy.com/check-in-policy/frontier-airlines-check-in/ |access-date=October 16, 2023}}</ref><ref>{{Cite news |date=October 1, 2013 |title=Republic Airways to sell Frontier for $145 million |work=[[Reuters]] |url=https://www.reuters.com/article/us-republic-frontier-indigo/republic-airways-to-sell-frontier-for-145-million-idUSBRE9900K520131001 |access-date=October 12, 2023}}</ref> On January 26, 2012, Republic Airways Holdings appointed former [[US Airways]] and [[Gate Gourmet]] CEO David Siegel as president and CEO of Frontier Airlines. Republic also added new senior officers for Frontier's finance and commercial team, among other changes in the executive leadership team. Siegel and other Frontier executives moved to Denver where Frontier is headquartered in order to facilitate management of all aspects of Frontier during its separation process from Republic and continue its transformation into an [[ultra low-cost carrier]] (ULCC).<ref name="phx.corporate-ir.net">{{Cite news |date=January 26, 2012 |title=Republic Airways Names New Frontier CEO, President and Interim COO |work=Business Wire |url=https://www.businesswire.com/news/home/20120126006487/en/Republic-Airways-Names-New-Frontier-CEO-President-and-Interim-COO |access-date=October 10, 2023}}</ref>

In November 2012, Frontier started low-frequency service between [[Orlando International Airport]]  and [[Trenton–Mercer Airport]] (TTN), located in [[Ewing, New Jersey]],<ref>{{Cite news |date=November 16, 2012 |title=Frontier's Trenton – Orlando Service Takes Flight |work=[[Business Wire]] |url=https://www.businesswire.com/news/home/20121116005767/en/Frontier%E2%80%99s-Trenton-%E2%80%93-Orlando-Service-Takes-Flight |url-status=live |access-date=October 12, 2023 |archive-url=https://web.archive.org/web/20141130040015/http://news.flyfrontier.com/press-release/new-cityschedule-changes/frontiers-trenton-%E2%80%93-orlando-service-takes-flight |archive-date=November 30, 2014}}</ref> which at that time, had no commercial service. Frontier later expanded service several times from Trenton, and as of January 2023 services 9 destinations.<ref>{{Cite web |title=Sitemap: City to City Flights |url=https://flights.flyfrontier.com/en/sitemap/city-to-city-flights/page-1 |access-date=January 5, 2023 |website=flights.flyfrontier.com}}</ref> Frontier currently bases three aircraft in Trenton.{{citation needed|date = July 2017}} Trenton Mercer Airport lies roughly equidistant between [[Philadelphia International Airport]] and [[Newark Liberty International Airport]].{{citation needed|date = July 2017}}

In July 2013, Frontier started service from [[Wilmington-New Castle Airport]] (ILG) near [[Wilmington, Delaware]], to five destinations,<ref>{{Cite news |date=July 1, 2013 |title=Frontier Airlines Service from Wilmington/Philadelphia Takes Flight |work=Business Wire |url=https://www.businesswire.com/news/home/20130701006293/en/Frontier-Airlines-Service-from-WilmingtonPhiladelphia-Takes-Flight |access-date=October 10, 2023 }}</ref> which Frontier markets as Wilmington/Philadelphia. Again, this airport had no commercial service prior to Frontier's entry.<ref name=tsd12820>{{cite news | title=Frontier plans to launch service from Wilmington-New Castle in mid-November | work=Delaware Business Now | date=April 21, 2020 | url= https://delawarebusinessnow.com/2020/04/frontier-plans-to-launch-service-from-wilmington-new-castle-in-mid-november/ |  access-date= May 23, 2015}}</ref> New Castle Airport lies roughly 30 miles southwest of [[Philadelphia International Airport]] and 75 miles northeast of [[Baltimore–Washington International Airport]].{{citation needed|date = July 2017}} As of 2022, Frontier does not serve ILG.<ref>{{Cite web |last=Owens |first=Jacob |date=May 13, 2022 |title=Frontier to leave Wilmington airport – again |url=https://delawarebusinesstimes.com/news/frontier-to-leave-again/ |access-date=January 5, 2023 |website=Delaware Business Times |language=en-US}}</ref>

Frontier marketed both the Trenton-Mercer and Wilmington-Philadelphia airports as low-cost, low-hassle alternatives to the existing nearby commercial airports.<ref>{{cite web |url= https://airlinefiles.com/air-wisconsin/81-national-regional-airlines/513-frontier-airlines-3.html?showall=&start=2|archive-url= https://web.archive.org/web/20220118223641/https://airlinefiles.com/air-wisconsin/81-national-regional-airlines/513-frontier-airlines-3.html?showall=&start=2|url-status= usurped|archive-date= January 18, 2022|title=Frontier Airlines Files |website=airlinefiles.com|access-date=February 4, 2020}}</ref>
Frontier is the only commercial carrier at Trenton, and was the only carrier at ILG until it left in 2022.<ref>{{cite web |url= https://www.usatoday.com/story/todayinthesky/2013/07/02/frontier-airlines-puts-delaware-back-on-usas-flight-map/2484543/ |title=Frontier Airlines puts Delaware back on USA's flight map |date=July 2, 2013 |work=[[USA Today]] |access-date=June 28, 2020}}</ref><ref>{{cite web |url=https://www.usatoday.com/story/todayinthesky/2013/11/07/has-frontier-hit-pay-dirt-at-trenton-wilmington-airports/3468101/ |title=Has Frontier hit pay dirt at Trenton, Wilmington airports?|date=November 7, 2013 |work= USA Today |access-date=June 28, 2020}}</ref>

In October 2013, Republic Airways Holdings entered into an agreement with private equity firm Indigo Partners to sell Frontier Airlines for approximately $145&nbsp;million. According to Indigo, the transaction would further Frontier's evolution into an ULCC.<ref name="prIdigoAcquires">{{cite press release |url= http://www.businesswire.com/news/home/20131203006643/en/Indigo-Partners-Completes-Acquisition-Frontier-Airlines |title=Indigo Partners Completes Acquisition Frontier Airlines |publisher=Frontier Airlines & Indigo Partners |via=Business Wire |date=December 3, 2013 |access-date=April 25, 2018 }}{{self-published source|date=April 2018}}</ref> In December 2013, Indigo Partners LLC, through an affiliate, completed the purchase of Frontier Airlines from Republic Airways Holdings. The airline's headquarters remained in Denver.<ref>{{cite news| url= http://www.denverpost.com/business/ci_24646215/sale-frontier-airlines-is-finalized | title=Frontier Airlines sale finalized to Indigo Partners LLC | work=denverpost.com | date=December 3, 2012| access-date= December 29, 2012}}</ref> On January 1, 2014, Republic Airways Holdings subsidiary Republic Airlines ceased its operation of Embraer 190 aircraft on behalf of Frontier.[[File:Frontier Airlines A321.jpg|thumb|Frontier Airbus A321-200 in the 2014 livery]]In 2014, Frontier announced it would be transitioning into an ULCC.<ref>{{cite web| url= http://www.bizjournals.com/denver/news/2015/01/19/frontier-airlines-owner-hints-at-mergers-ahead.html|title=Frontier Airlines owner hints at mergers ahead among low-cost carriers|date=January 19, 2015|work=Denver Business Journal|access-date=April 3, 2015}}</ref> Frontier also announced that it would cut several flights and jobs at its Denver hub and transition them to different markets. On January 16, 2015, Frontier announced that it would close both its Denver and Milwaukee call centers, laying off 1,300 employees and outsourcing the jobs to call center company Sitel, which operates a large call center for Frontier in [[Las Cruces, New Mexico]].<ref>{{cite web| url= http://kdvr.com/2015/01/16/frontier-airlines-to-outsource-airport-reservations-jobs-in-denver/|title=Frontier Airlines to outsource 1,160 airport, reservations jobs in Denver|work=FOX31 Denver|date=January 16, 2015|access-date=April 3, 2015}}</ref> Frontier Airlines joined Spirit and Allegiant in June 2015 by eradicating its [[toll-free telephone number]] for customer service.<ref>{{cite news| url= https://www.usatoday.com/story/travel/flights/todayinthesky/2015/08/11/frontier--latest-airline--do-away--toll-free-customer-service-number/31453053/|title=Frontier is latest airline to do away with toll-free customer service number|last=Mutzabaugh|first=Ben|date=August 11, 2015|work=USA TODAY|access-date=October 16, 2018|publisher=Gannett|quote=...discontinuing the toll-free number will save it $160,000 a month — or close to $2&nbsp;million a year.}}</ref>

In June 2014, Frontier Airlines opened a crew base for flight attendants at [[Trenton–Mercer Airport]].<ref>{{Cite news |date=February 28, 2014 |title=Frontier Airlines Announces New Crew Base to Open at Trenton-Mercer Airport |work=PR Web |url=https://www.prweb.com/releases/frontier_airlines_announces_new_crew_base_to_open_at_trenton_mercer_airport/prweb11626737.htm |url-status=live |access-date=October 11, 2023 |archive-url=https://web.archive.org/web/20140621010200/http://news.flyfrontier.com/press-release/frontier-airlines-announces-new-crew-base-open-trenton-mercer-airport |archive-date=June 21, 2014}}</ref>

In January 2015, Frontier Airlines cut several flights from Wilmington and Trenton. It also resumed service to Philadelphia, casting doubt on the airline's existing bases.<ref>{{cite web| url= http://www.nj.com/mercer/index.ssf/2015/01/frontier_airlines_officials_remain_committed_to_tr.html|title=Frontier Airlines officials remain committed to Trenton–Mercer Airport amid service cancellations|work=NJ.com|date=January 17, 2015|access-date=April 3, 2015}}</ref><ref>{{cite news | url= http://www.travelpulse.com/news/airlines/watch-what-will-frontiers-move-to-the-market-mean-for-philly-travelers.html | title=Watch: What Will Frontier's Move to the Market Mean for Philly Travelers? | first=Tim | last=Wood | work=[[TravelPulse]] | date=January 12, 2015}}</ref> In late June 2015, Frontier announced it had ceased service in Wilmington, stating it was not profitable.<ref>{{cite web| url=http://www.delawareonline.com/story/money/business/2015/06/26/frontier-airlines-officially-departs-delaware/29327411/|title=Frontier Airlines officially departs Delaware|date=June 26, 2015|work=delawareonline.com}}</ref>

In February 2015, Frontier announced that they would begin service to several destinations from [[Hartsfield–Jackson Atlanta International Airport|Atlanta]], adding the airport as a focus city. In July, Frontier began to decrease service from [[Washington Dulles International Airport]], removing the airport as a focus city. In early 2016, Frontier announced major route expansion from airports nationwide, including [[Hartsfield–Jackson Atlanta International Airport|Atlanta]], [[O'Hare International Airport|Chicago]], [[Cincinnati Northern Kentucky International Airport|Cincinnati]], [[Cleveland Hopkins International Airport|Cleveland]], [[Orlando International Airport|Orlando]], and [[Philadelphia International Airport|Philadelphia]].<ref>{{cite news|url=https://www.flyfrontier.com/plan-and-book/route-map|title= Frontier Announces Major Route Expansion|newspaper= Frontier Airlines|date=April 4, 2016}}</ref> In June 2016, Frontier re-established service to [[John Glenn Columbus International Airport]].<ref>{{cite web |last=Rose |first=Marla Matzer |date=June 1, 2016 |title=Frontier Airlines launches at Port Columbus |url=https://www.dispatch.com/story/lifestyle/travel/2016/06/01/frontier-airlines-launches-at-port/23827588007/ |access-date=October 11, 2023 |publisher=The Columbus Dispatch}}</ref> In May 2017, the airline announced it would open a new crew base in [[McCarran International Airport|Las Vegas]] in fall 2017, to improve operational reliability and potentially create new jobs in Las Vegas.<ref>{{cite web|last1=Marroquin|first1=Art|title=Frontier adding Las Vegas flights, local crew base |url= https://www.reviewjournal.com/business/tourism/frontier-adding-las-vegas-flights-local-crew-base/|website=Las Vegas Review-Journal|date=May 4, 2017|access-date=May 13, 2017}}</ref> In December 2017, Frontier began service to [[Buffalo, New York]], with service to Denver, Colorado, and Florida, including Miami, Fort Myers, Orlando, and Tampa.<ref>{{cite web |last=Peters |first=LaMonica |date=July 18, 2017 |title=Frontier Airlines offering low fares, direct flights from Buffalo |url=https://spectrumlocalnews.com/news/2017/07/18/frontier-airlines--buffalo-niagara-international-airport--buffalo--cheektowaga--airport--flight--low--fare |access-date=October 12, 2023 |website=spectrumlocalnews.com |publisher=[[Spectrum News]]}}</ref>

In May 2015, Indigo and Frontier announced the departure of David Siegel as CEO. He had already previously turned over the role of president to Barry Biffle, formerly of [[Spirit Airlines]]. Siegel was not immediately replaced; instead, his duties were split between Biffle and Indigo chairman Bill Franke. Biffle cited operational issues in connection with Siegel's departure.<ref>{{cite web| url= http://www.denverpost.com/business/ci_28107141/ceo-david-siegel-is-out-at-frontier-airlines|title=David Siegel out as Frontier Airlines CEO| first=Laura |last=Keeney |work=The Denver Post|date=May 13, 2015}}</ref>

In 2015, in an airline quality rating report by [[Embry-Riddle Aeronautical University]] and [[Wichita State University]], Frontier was ranked amongst the five worst airlines in the United States, especially due to its rate of customer complaints and bumped passengers.<ref name="Groden" /><ref>{{cite web|last1=Bowen|first1=Brent D.|last2=Headley|first2=Dean E.|date=April 13, 2015|title=Airline Quality Rating 2015|url=http://commons.erau.edu/cgi/viewcontent.cgi?article=1025&amp;context=aqrr|access-date=August 31, 2017|website=[[Embry-Riddle Aeronautical University]]}}</ref><ref>{{cite web|last=Bukszpan|first=Daniel|date=April 13, 2015|title=These are the 5 Worst Airlines in America|url=http://fortune.com/2015/04/13/five-worst-airlines-in-america/|access-date=August 31, 2017|website=[[Fortune (magazine)|Fortune]]}}</ref> The airline had relatively poor on-time performance, and the waiting time for help when calling the airline on the phone was reported to have risen to two hours or more.<ref name="FAAspike">{{cite web|last=Keeney|first=Laura|date=April 9, 2015|title=FAA records spike in consumer complaints against Frontier Airlines|url=http://www.denverpost.com/2015/04/09/faa-records-spike-in-consumer-complaints-against-frontier-airlines/|access-date=August 31, 2017|website=[[The Denver Post]]}}</ref>

In December 2016, a winter weather event disrupted fleet operations and caused Frontier to delay or cancel up to 70% of their flights suddenly during the peak of the crisis. On the weekend of December 17, the storm caused major delays at Frontier's Denver hub. The effects of the storm were felt throughout the fleet.<ref>{{Cite news |url= https://www.usatoday.com/story/travel/flights/todayinthesky/2016/12/19/frontier-airlines-apologizes-after-weather-meltdown-denver/95621028/|title=Frontier Airlines apologizes after weather 'meltdown' in Denver|newspaper=USA Today|access-date=December 24, 2016}}</ref> Flights were delayed or canceled at airports across the country; in some cases, planes were ready to depart, but the airline had no rested and available flight crews to service the flights.<ref>{{Cite news |last= |first= |date=December 20, 2016 |title=Frontier admits fault for canceled flights, lost bags |work=[[KDVR]] |url=https://kdvr.com/news/frontier-admits-fault-for-cancelled-flights-lost-bags/ |access-date=October 12, 2023 }}</ref> The head of Frontier's pilot's union issued a statement criticizing the companies' handling of the event, comparing the airline to a "house of cards."<ref>{{Cite news |url= http://www.thedenverchannel.com/news/investigations/head-of-frontier-pilots-union-compared-airline-to-a-house-of-cards|title=Head of Frontier pilots' union compared airline to a house of cards|last= Larson| first=Jace| date=December 22, 2016|newspaper= thedenverchannel.com| language=en-US|access-date=December 24, 2016}}</ref>