| Known As / Full Name | URL |
|---|---|
| X2 Air / X2 Air Limited | www.flyx2air.com |
| Xair Brno / Xair Brno | www.xair.aero |
| Xcel Jet / Xcel Jet Management, Inc. | xceljet.com |
| XE Jet / XE Jet Aviation Ltd | xejet.com |
| Xiamen Airlines / Xiamen Airlines | www.xiamenair.com.cn |
| XJC Ltd. / XJC Limited | xclusivejets.com |
| Xjet / Xjet Limited | www.xjet.com |
| XO / Xojet Aviation LLC | www.flyxo.com |
| Xstrata Nickel / Xstrata Nickel | www.glencore.com |
| Xtra Airways / Xtra Airways | www.xtraairways.com |