F1: 30 May 2006
Delivered: 9 Jun. 2006
| 09 Jun. 2006 | Spirit Airlines | NKS,NK | N521NK | |
| N521NK | lsd:ILFC | A68DDB |
| 15 Sep. 2008 | Mandala Airlines | MDL,RI | RK-RMH | |
| RK-RMH | lsd:ILFC | 8A019C |
| 04 Feb. 2011 | ❖ ILFC | N611LF |
| 28 Jul. 2011 | Wind Jet | JET,IV | EI-ESG | |
| EI-ESG | lsd:ILFC | 4CA989 |
 |
| MXP - May 2012 Copyright: Günter Mayer |
| 07 Nov. 2012 | ❖ ILFC | N521NK |
| 14 Dec. 2012 | Spirit Airlines | NKS,NK | N521NK | |
| N521NK | lsd:ILFC | A68DDB |
 |
| FLL - Feb. 2014, © Marcel Hohl |
| Jul. 2016 | Stored at STR | N521NK |
| ntu | United Airlines | UAL,UA | N887UA |
| Sep. 2016 | Spirit Airlines | NKS,NK | N521NK | |
| N521NK | lsd:AerCap | A68DDB |
| 12 Jul. 2020 | Stored at MCO | A68DDB | N521NK |
| 15 Jul. 2020 | ✈ Ferried MCO-MZJ | NK9200 |
| 29 Apr. 2021 | ✈ Ferried MZJ-LCO | NK9221 |
| 29 Apr. 2021 | Spirit Airlines | NKS,NK | N521NK | |
| N521NK | lsd:AerCap | A68DDB |
| 05 Jul. 2023 | Stored at IAH | A68DDB | N521NK |
| 11 Jul. 2023 | ✈ Ferried IAH-P08 | NK9921 |
| 29 Sep. 2023 | ❖ Gryphone Aviation Leasing | A68DDB | N521NK |
| 04 Jan. 2024 | ❖ Lufthansa Technik | A68DDB | N521NK | |
| stored |
02797, N521NK