| Airport Code | City | State/Region | Country | Airport Name |
| DCA | Washington | DC | USA | Washington National Airport |
| DCF | Dominica | | Dominica | Cane Field |
| DDC | Dodge City | KS | USA | Dodge City Municipal |
| DEC | Decatur | IL | USA | Decatur Municiple Airport |
| DEL | Delhi | | India | Delhi International Airport |
| DEM | Dembidollo | | Ethiopia | Dembidollo |
| DEN | Denver | CO | USA | Denver International |
| DFW | Dallas/Ft Worth | TX | USA | Dallas Ft Worth International |
| DGA | Dangriga | | Belize | Dangriga |
| DGO | Durango | Durango | Mexico | Gen Guadalupe Victoria |
| DHA | Dhahran | | Saudi Arabia | Dhahran Intl |
| DHN | Dothan | AL | USA | Municipal |
| DIB | Dibrugarh | | India | Chabua |
| DIJ | Dijon | | France | Longvic |
| DIL | Dili | | Indonesia | Comoro |
| DIY | Diyarbakir | | Turkey | Diyarbakia |
| DKR | Dakar | | Senegal | Yoff |
| DLA | Douala | | Cameroon | Douala |
| DLC | Dalian | | China | |
| DLH | Duluth | MN | USA | Duluth International Airport |