- X Bar 1 Ranch Lower AirportIdent: AZ97Country: United States
- X Bar 1 Ranch Upper Headquarters AirportIdent: 52AZCountry: United States
- X1 Ranch AirportIdent: 8NE5Country: United States
- Xai-Xai Chongoene AirportIdent: FQXACountry: Mozambique
- Xanadu AirportIdent: SINZCountry: Brazil
- Xangongo AirportIdent: FNXACountry: Angola
- Xanxerê AirportIdent: SSXXCountry: Brazil
- Xapuri AirportIdent: SWXUCountry: Brazil
- Xavantina AirportIdent: SWXVCountry: Brazil
- Xi'an Air BaseIdent: CN-0137Country: China
- Xi'an Xianyang International AirportIdent: ZLXYCountry: China
- Xi'an Xiguan AirportIdent: ZLSNCountry: China
- Xiamen Gaoqi International AirportIdent: ZSAMCountry: China
- Xiangxi Biancheng AirportIdent: ZGXXCountry: China
- Xiangyang Liuji AirportIdent: ZHXFCountry: China
- Xiangyun Midu Air BaseIdent: CN-0049Country: China
- Xiaogan Air BaseIdent: CN-0085Country: China
- Xichang Qingshan AirportIdent: ZUXCCountry: China
- Xicoténcatl AirportIdent: MM56Country: Mexico
- Xidea AirportIdent: SJNGCountry: Brazil
- Xieng Khouang AirportIdent: VLXKCountry: Laos
- Xigaze Peace Airport / Shigatse Air BaseIdent: ZURKCountry: China
- Xilinhot AirportIdent: ZBXHCountry: China
- Ximarí AirportIdent: SJ9PCountry: Brazil
- Xincheng Air BaseIdent: CN-0138Country: China
- Xingcheng Air BaseIdent: ZYXCCountry: China
- Xingning Air BaseIdent: ZGXNCountry: China
- Xingu AirstripIdent: 99WYCountry: United States
- Xinguara Municipal AirportIdent: XIGCountry: Brazil
- Xingyi Wanfenglin AirportIdent: ZUYICountry: China
- Xingó AirportIdent: SJPOCountry: Brazil
- Xining Caojiabao International AirportIdent: ZLXNCountry: China
- Xinyang Minggang AirportIdent: ZHXYCountry: China
- Xinyuan Nalati AirportIdent: ZWNLCountry: China
- Xinzhou Wutaishan AirportIdent: ZBXZCountry: China
- Xique-Xique AirportIdent: SNXQCountry: Brazil
- Xishuangbanna Gasa International AirportIdent: ZPJHCountry: China
- XL Ranch AirportIdent: 77XACountry: United States
- Xoxocotlán International AirportIdent: MMOXCountry: Mexico
- Xpoint AirportIdent: 6SD4Country: United States
- Xuzhou Daguozhang Air BaseIdent: CN-0106Country: China
- Xuzhou Guanyin International AirportIdent: ZSXZCountry: China