| Known As / Full Name |
URL |
| Daallo Airlines / Daallo Airlines | www.daallo.com |
| Dakota National Air / Dakota National Air | www.dakota-air.com |
| Dalian Airlines / Dalian Airlines Co., Ltd. | www.dalianair-china.com |
| Damal Airlines / Damal Airlines | www.damalair.co.ae |
| Dan Air / Dan Air S.r.l. | danair.ro |
| Dana Executive Jets / Dana Executive Jets | www.danajets.com |
| Danish Air Force / Danish Air Force | www.forsvaret.dk/en/organisation/airforce/ |
| DAP Helicopteros / DAP Helicopteros Ltda. | www.daphelicopteros.cl |
| Darik Sky / Darik Sky | www.dariksky.bg |
| Darwin travel Technology / Darwin travel Technology, Inc. | darwin.aero |
| DAS Nordisk / DAS Nordisk Ltd. | www.dasnordisk.com |
| DAS Private Jets / DAS Private Jets GmbH | www.das-private-jets.com |
| Dasab Airlines / Dasab Airlines | www.dasabairlines.com |
| Dasnair / Dasnair SA | www.dasnair.ch |
| Dassault Aviation / Dassault Aviation | www.dassault-aviation.com |
| Dassault Falcon Service / Dassault Falcon Service | www.dassaultfalcon.com |
| Dassault Falcon Service France / Dassault Falcon Service France | www.dassaultfalconservice.com |
| DAT / DAT A/S | www.dat.dk |
| DAT / DAT LT UAB d/b/a DAT | www.dot.lt |
| DB Aviation / DBT-Transportes Aereos Lda (DB Aviation) | www.dbaviation.eu |
| DC Aviation / DC Aviation GmbH | www.dc-aviation.com |
| DC Aviation / DC Aviation Limited | www.dc-aviation.com.mt |
| DC Aviation / DC Aviation GmbH | www.dc-aviation.com |
| DC Aviation Al-Futtaim / DC Aviation Al-Futtaim LLC | www.dc-aviation.ae |
| DC Aviation San Marino / DC Aviation San Marino S.r.l. | www.dc-aviation.com |
| De Havilland Aircraft of Canada / De Havilland Aircraft of Canada Ltd | dehavilland.com |
| DEA Aviation / DEA Aviation Ltd. | www.dea.aero |
| Deer Horn Aviation / Deer Horn Aviation Ltd., Co. | www.deerhornaviation.com |
| Deer Jet (Beijing) / Deer Jet (Beijing) Co., Ltd. | www.deerjet.com |
| Delaware Skyways / Delaware Skyways LLC | www.delawareskyways.com |
| Delta Air Lines / Delta Air Lines, Inc. | www.delta.com |
| Delta Express / Delta Express | www.flydlx.com |
| Department of National Defence / Department of National Defence | www.forces.gc.ca |
| Deraya Air Taxi / Deraya Air Taxi PT. | www.boedihardjogroup.com/aviation/deraya.htm |
| Derazona Air Service / Derazona Air Service, PT. | www.derazona.com |
| Desert Jet / Desert Jet, LLC | www.desertjet.com |
| DesertAir Alaska / Desert Air Transport, Inc t/a DesertAir Alaska | desertairalaska.com |
| Deucalion Aviation / Deucalion Aviation Limited | deucalion.com |
| Deutsche Bahn / Deutsche Bahn AG | www.bahn.de |
| Devinaire / Devinaire, LLC | www.flydevinaire.com |
| DHL Aero Expreso / DHL Aero Expreso, S.A. | www.dhl.com/publish/g0/en/about/airline.low.html |
| DHL Air / DHL Air (UK) Limited | www.dhl.co.uk |
| DHL Aviation / DHL Aviation EEMEA B.S.C(c) | www.dhl.com |
| DHL de Guatemala / DHL de Guatemala, S.A. | www.dhl.com/publish/g0/en/about/airline.low.html |
| DI Air / DI Air | www.diair.net |
| Diamond Aircraft UK Ltd. / Diamond Aircraft UK Ltd. | www.diamondair.co.uk |
| Diamond Flight Academy Scandinavia / Diamond Flight Academy Scandinavia AB | www.flightacademy.se |
| Diamond Sky / Diamond Sky OU | www.diamond-sky.aero |
| Dillon Aero / Dillon Aero Inc | dillonaero.com |
| Direct Aero Services / Direct Aero Services | www.aeroservices.ro |
| Directflight / Directflight Limited. | www.airtask.com/Directflight-Airtask-Group |
| Discover Airlines / EW Discover GmbH t/a Discover Airlines | www.discover-airlines.com |
| Discovery Air Innovations Chile / Discovery Air Innovations Chile Ltda | www.helicopters.cl |
| Discovery Jets / USAC Airways 693, LLC d/b/a Discovery Jets | www.discoveryjets.com |
| Divi Divi Air / Divi Divi Air NV | www.flydivi.com |
| Dlimi Airlines / Dlimi Airlines | www.dlimiairlines.com |
| Dokasch GmBH / Dokasch GmBH | www.dokasch.com |
| Dokia Air / Dokia Air S.r.l. | www.dokiaair.com |
| Dolphin Air / Dolphin Air | www.dolphinair.ae |
| Domergue Aviation / Domergue Aviation | www.domergue.fr |
| Domodedovo Airport Handling / Domodedovo Airport Handling, CJSC | www.domodedovo.ru |
| Donghai Airlines / Donghai Airlines Co., Ltd. | www.donghaiair.com |
| Dove Air / Dove Air Services Co Ltd | doveair-sd.com |
| Dragon Helicopters / Dragon Helicopters | www.dragonhelicopters.co.uk |
| DragonFly Executive Air Charter / DragonFly Executive Air Charter | www.dragonflyac.com |
| Dream Flyers Training Center / Dream Flyers Training Center | pilots.dflyers.com |
| Dreamline Aviation / Dreamline Aviation, LLC | www.dreamlineaviation.com |
| Dreamshore Aero / Dreamshore Aero | dreamshoreaero.com |
| DRF - Stiftung Luftrettung Gemeinnuetzige AG / DRF - Stiftung Luftrettung Gemeinnuetzige AG | www.drf.de |
| Dronamics Europe Airlines / Dronamics Europe Airlines Limited | www.dronamics.com |
| Druk Air Corporation / Druk Air Corporation Ltd. | www.drukair.com.bt |
| Duke Energy Business Services / Duke Energy Business Services LLC | www.duke-energy.com/business |
| Dumont Aviation / Dumont Aircraft Charter, LLC d/b/a Dumont Aviation | www.dumontde.com |
| DXC Technology Services / DXC Technology Services LLC | www.dxc.technology |
| Dynamic Air / Dynamic Air, S.L. | www.dynamicair.es |