| IATA | ICAO | Airport name | Location served |
|---|
| -XA- |
|---|
| XAL | | Álamos Airport | Álamos, Sonora, Mexico |
| XAP | SBCH | Serafin Enoss Bertaso Airport | Chapecó, Santa Catarina, Brazil |
| XAR | DFOY | Aribinda Airport | Aribinda, Burkina Faso |
| XAU | SOOS | Saül Airport | Saül, French Guiana |
| -XB- |
|---|
| XBB | | Blubber Bay Seaplane Base | Blubber Bay, British Columbia, Canada |
| XBE | | Bearskin Lake Airport (TC: CNE3) | Bearskin Lake, Ontario, Canada |
| XBG | DFEB | Bogande Airport | Bogandé, Burkina Faso |
| XBJ | OIMB | Birjand International Airport | Birjand, Iran |
| XBL | HABB | Bedele Airport (Buno Bedele Airport) | Bedele, Ethiopia |
| XBN | | Biniguni Airport | Biniguni, Papua New Guinea |
| XBO | DFEA | Boulsa Airport | Boulsa, Burkina Faso |
| XBR | | Brockville Regional Tackaberry Airport (TC: CNL3) | Brockville, Ontario, Canada |
| -XC- |
|---|
| XCH | YPXM | Christmas Island Airport | Christmas Island, Australia |
| XCL | | Cluff Lake Airport (TC: CJS3) | Cluff Lake, Saskatchewan, Canada |
| XCM | CYCK | Chatham-Kent Airport | Chatham-Kent, Ontario, Canada |
| XCN | | Coron Airport | Coron, Philippines |
| XCO | YOLA | Colac Airport | Colac, Victoria, Australia |
| XCR | LFOK | Châlons Vatry Airport | Châlons-en-Champagne, Champagne-Ardenne, France |
| -XD- |
|---|
| XDE | DFOU | Diébougou Airport | Diébougou, Burkina Faso |
| XDJ | DFCJ | Djibo Airport | Djibo, Burkina Faso |
| -XE- |
|---|
| XEN | ZYXC | Xingcheng Airport | Xingcheng, Liaoning, China |
| XES | | Grand Geneva Resort Airport (FAA: C02) | Lake Geneva, Wisconsin, United States |
| -XF- |
|---|
| XFN | ZHXF | Xiangyang Liuji Airport | Xiangyang, Hubei, China |
| XFW | EDHI | Hamburg Finkenwerder Airport | Hamburg, Germany |
| -XG- |
|---|
| XGA | DFOG | Gaoua Airport (Amilcar Cabral Airport) | Gaoua, Burkina Faso |
| XGG | DFEG | Gorom Gorom Airport | Gorom-Gorom, Burkina Faso |
| XGL | | Granville Lake Airport | Granville Lake, Manitoba, Canada |
| XGN | FNXA | Xangongo Airport | Xangongo, Angola |
| XGR | CYLU | Kangiqsualujjuaq (Georges River) Airport | Kangiqsualujjuaq, Quebec, Canada |
| -XI- |
|---|
| XIC | ZUXC | Xichang Qingshan Airport | Xichang, Sichuan, China |
| XIE | | Xienglom Airport [1] | Xienglom, Laos |
| XIG | | Xinguara Municipal Airport | Xinguara, Pará, Brazil |
| XIJ | OKAJ | Ahmad al-Jaber Air Base [1] | Al Ahmadi, Kuwait |
| XIL | ZBXH | Xilinhot Airport | Xilinhot, Inner Mongolia, China |
| XIN | ZGXN | Xingning Air Base | Xingning, Guangdong, China |
| XIY | ZLXY | Xi'an Xianyang International Airport | Xi'an, Shaanxi, China |
| -XJ- |
|---|
| XJD | OTBH | Al Udeid Air Base [1] | Al Rayyan, Qatar |
| XJM | OPMA | Mangla Airport [1] | Mangla, Pakistan |
| -XK- |
|---|
| XKA | DFEL | Kantchari Airport | Kantchari, Burkina Faso |
| XKH | VLXK | Xieng Khouang Airport | Phonsavan, Laos |
| XKS | CYAQ | Kasabonika Airport | Kasabonika, Ontario, Canada |
| XKY | DFCA | Kaya Airport | Kaya, Burkina Faso |
| -XL- |
|---|
| XLB | CZWH | Lac Brochet Airport | Lac Brochet, Manitoba, Canada |
| XLO | | Long Xuyen Airport | Long Xuyên, Vietnam |
| XLS | GOSS | Saint-Louis Airport | Saint-Louis, Senegal |
| XLU | DFCL | Leo Airport | Léo, Burkina Faso |
| XLW | EDWD | Lemwerder Airport | Lemwerder, Lower Saxony, Germany |
| -XM- |
|---|
| XMA | | Maramag Airport | Maramag, Philippines |
| XMC | YMCO | Mallacoota Airport [1] | Mallacoota, Victoria, Australia |
| XMD | KMDS | Madison Municipal Airport (FAA: MDS) | Madison, South Dakota, United States |
| XMG | VNMN | Mahendranagar Airport | Bhimdatta (Mahendranagar), Nepal |
| XMH | NTGI | Manihi Airport | Manihi, Tuamotus, French Polynesia |
| XMI | HTMI | Masasi Airport | Masasi, Tanzania |
| XML | YMIN | Minlaton Airport | Minlaton, South Australia, Australia |
| XMN | ZSAM | Xiamen Gaoqi International Airport | Xiamen, Fujian, China |
| XMP | | Macmillan Pass Airport [1] (TC: CFC4) | Macmillan Pass, Yukon, Canada |
| XMS | SEMC | Edmundo Carvajal Airport | Macas, Ecuador |
| XMY | YYMI | Yam Island Airport | Yam Island, Queensland, Australia |
| -XN- |
|---|
| XNA | KXNA | Northwest Arkansas Regional Airport | Fayetteville / Springdale, Arkansas, United States |
| XNG | | Quang Ngai Airport [1] | Quang Ngai (Quảng Ngãi), Vietnam |
| XNN | ZLXN | Xining Caojiabao Airport | Xining, Qinghai, China |
| XNT | ZBXT | Xingtai Dalian Airport | Xingtai, Hebei, China |
| XNU | DFON | Nouna Airport | Nouna, Burkina Faso |
| -XP- |
|---|
| XPA | DFEP | Pama Airport | Pama, Burkina Faso |
| XPK | CZFG | Pukatawagan Airport | Pukatawagan, Manitoba, Canada |
| XPL | MHSC | Soto Cano Air Base | Comayagua, Honduras |
| XPP | CZNG | Poplar River Airport | Poplar River, Manitoba, Canada |
| XPR | KIEN | Pine Ridge Airport (FAA: IEN) | Pine Ridge, South Dakota, United States |
| -XQ- |
|---|
| XQP | MRQP | Quepos La Managua Airport | Quepos, Costa Rica |
| XQU | | Qualicum Beach Airport (TC: CAT4) | Qualicum Beach, British Columbia, Canada |
| -XR- |
|---|
| XRH | YSRI | RAAF Base Richmond [1] | Richmond, New South Wales, Australia |
| XRR | CYDM | Ross River Airport | Ross River, Yukon, Canada |
| XRY | LEJR | Jerez Airport (La Parra Airport) | Jerez de la Frontera, Andalusia, Spain |
| -XS- |
|---|
| XSB | OMBY | Sir Bani Yas Airport [1] | Sir Bani Yas, United Arab Emirates |
| XSC | MBSC | South Caicos Airport | South Caicos, British Overseas Territory of Turks and Caicos Islands |
| XSD | KTNX | Tonopah Test Range Airport (FAA: TNX) | Tonopah, Nevada, United States |
| XSE | DFES | Sebba Airport | Sebba, Burkina Faso |
| XSI | CZSN | South Indian Lake Airport | South Indian Lake, Manitoba, Canada |
| XSO | RPNO | Siocon Airport | Siocon, Philippines |
| XSP | WSSL | Seletar Airport | Singapore |
| -XT- |
|---|
| XTG | YTGM | Thargomindah Airport | Thargomindah, Queensland, Australia |
| XTL | CYBQ | Tadoule Lake Airport | Tadoule Lake, Manitoba, Canada |
| XTO | YTAM | Taroom Airport | Taroom, Queensland, Australia |
| XTR | YTAA | Tara Airport | Tara, Queensland, Australia |
| -XU- |
|---|
| XUZ | ZSXZ | Xuzhou Guanyin Airport | Xuzhou, Jiangsu, China |
| -XV- |
|---|
| XVL | | Vinh Long Airport | Vinh Long (Vĩnh Long), Vietnam |
| -XY- |
|---|
| XYA | AGGY | Yandina Airport | Yandina, Solomon Islands |
| XYE | VYYE | Ye Airport | Ye, Myanmar |
| XYR | AYED | Edwaki Airport [1] | Yellow River, Papua New Guinea |
| -XZ- |
|---|
| XZA | DFEZ | Zabré Airport | Zabré, Burkina Faso |
