Saarbrücken Airport July 2014 it was reported that Zweibrücken Airport had filed for bankruptcy due to illegal subsidies as it is too close to Saarbrücken Airport, which has been in existence for much longer. After Hapagfly left, Air Berlin opened routes from Saarbrücken to Palma de Mallorca and Berlin–Tegel Airport, but it ceased flying in 2017. Additionally, Luxair has made Saarbrücken Airport its secondary hub due to its proximity to Luxembourg. Saarbrücken Airport handled 452,314 passengers in 2011. Due to Zweibrücken Airport's financial difficulties, TUIfly announced that their seasonal base would be relocated from there to Saarbrücken Airport from summer 2015. Other
Kansas City International Airport for its Municipal Airport (IATA: ICT, ICAO: KICT) after Kansas City abandoned it. However, Wichita had no luck in changing its IATA designation for the same reasons (including the forbidden "W"). In 2016, Wichita Mid-Continent was renamed Eisenhower National Airport. The downtown Kansas City airport got around the "K" restriction because it was originally called Municipal Airport and so its designation is MKC and for added incentive it was in Missouri. The "W" and "K" restrictions have since been lifted, but the IATA is reluctant to change names that have appeared on navigational charts. The "KCI" designation is also already