In 2011 Spirit Airlines returned to OAK after several years of absence, eventually flying a combined total of seven year-round and seasonal routes by the summer of 2017. Oakland International Airport also celebrated its 85th Anniversary in 2011, commemorating the first transpacific crossing by air from OAK to Hawaii, which took place on June 29, 1927 in "The Bird of Paradise", flown by Hegenberger and Maitland. In 2012 United Airlines pulled out of OAK, consolidating operations at San Francisco International Airport, its Bay Area hub. Arkefly (which later re-branded as TUI Airlines Netherlands) chose OAK as a San Francisco Bay Area gateway, flying twice-weekly to Amsterdam, via a stop at Los Angeles International Airport. Arkefly provided 18 weeks of scheduled service in the summer of 2012. The airline followed with a similar schedule during the summer of in 2013, before discontinuing service at OAK.