| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| ORA (ORAN) | airport | Argentina | -23.15 | -64.33 | 1168 | 0 | |
| ORAA (AL ASAD AB) | airport | Iraq | 33.79 | 42.44 | 618 | 0 | |
| ORADEA | airport | Romania | 47.03 | 21.90 | 465 | 0 | |
| ORAMA-IAYUYA | airport | United States | 18.21 | -66.63 | 1463 | 0 | |
| ORAN | airport | Argentina | -23.15 | -64.33 | 1168 | 0 | |
| ORANGE | airport | Australia | -33.38 | 149.13 | 3115 | 0 | |
| ORANGE CITY MUNI | airport | United States | 42.99 | -96.06 | 1414 | 0 | |
| ORANGE CO | airport | United States | 30.07 | -93.80 | 13 | 0 | |
| ORANGE CO | airport | United States | 38.25 | -78.05 | 465 | 0 | |
| ORANGE CO | airport | United States | 41.51 | -74.26 | 365 | 0 | |
| ORANGE CO SHERIFFS FORENSICS LAB HELISTOP | airport | United States | 33.75 | -117.88 | 223 | 0 | |
| ORANGE COUNTY SHERIFF'S OFFICE | airport | United States | 28.51 | -81.41 | 98 | 0 | |
| ORANGE COUNTY STEEL SALVAGE | airport | United States | 33.85 | -117.85 | 230 | 0 | |
| ORANGE GROVE NALF | airport | United States | 27.90 | -98.05 | 257 | 0 | |
| ORANGE HILL | airport | United States | 30.66 | -85.53 | 260 | 0 | |
| ORANGE MUNI | airport | United States | 42.57 | -72.29 | 555 | 0 | |
| ORANGE POULTRY FARM | airport | United States | 41.33 | -74.32 | 420 | 0 | |
| ORANGEBURG MUNI | airport | United States | 33.46 | -80.86 | 195 | 0 | |
| ORANJEMUND | airport | Namibia | -28.58 | 16.45 | 14 | 0 | |
| ORAT (AL TAQADDUM AB) | airport | Iraq | 33.34 | 43.60 | 275 | 0 | |
| ORB (OREBRO) | airport | Sweden | 59.22 | 15.04 | 188 | 0 | |
| ORBB (Bamarni Airport) | airport | 37.10 | 43.27 | 3455 | 0 | ||
| ORBD (BALAD SOUTHEAST) | airport | Iraq | 33.94 | 44.36 | 161 | 0 | |
| ORBI (BAGHDAD INTL) | airport | Iraq | 33.26 | 44.23 | 114 | 0 | |
| ORBIT | airport | United States | 45.57 | -122.32 | 22 | 0 | |
| ORBM (MOSUL) | airport | Iraq | 36.31 | 43.15 | 709 | 0 | |
| ORBR (BASHUR) | airport | Iraq | 36.53 | 44.34 | 2079 | 0 | |
| ORC (Orocue Airport) | airport | 4.79 | -71.36 | 434 | 0 | ||
| ORCAS ISLAND | airport | United States | 48.71 | -122.91 | 31 | 0 | |
| ORCHARD RANCH | airport | United States | 43.62 | -107.41 | 5277 | 0 | |
| ORD (CHICAGO OHARE INTL) | airport | United States | 41.98 | -87.90 | 668 | 0 | |
| ORD MOUNTAIN | airport | United States | 34.67 | -116.81 | 6120 | 0 | |
| ORE (BRICY) | airport | France | 47.99 | 1.76 | 412 | 0 | |
| OREBRO | airport | Sweden | 59.22 | 15.04 | 188 | 0 | |
| ORECK | airport | United States | 30.78 | -89.73 | 180 | 0 | |
| OREGON HEALTH SCIENCES UNIVERSITY EMERG | airport | United States | 45.50 | -122.69 | 540 | 0 | |
| OREGON SKY RANCH | airport | United States | 45.88 | -118.41 | 1357 | 0 | |
| ORENBURG | airport | Russia | 51.80 | 55.46 | 387 | 0 | |
| ORER (ERBIL INTL) | airport | Iraq | 36.24 | 43.96 | 1341 | 0 | |
| ORESTES ACOSTA | airport | Cuba | 20.65 | -74.92 | 16 | 0 | |
| ORF (NORFOLK INTL) | airport | United States | 36.89 | -76.20 | 26 | 0 | |
| ORG (Zorg en Hoop Airport) | airport | 5.81 | -55.19 | 10 | 0 | ||
| ORH (WORCESTER RGNL) | airport | United States | 42.27 | -71.88 | 1009 | 0 | |
| ORI (PORT LIONS) | airport | United States | 57.89 | -152.85 | 52 | 0 | |
| ORICANGA DE ABREU | airport | Brazil | -14.12 | -46.35 | 2713 | 0 | |
| ORITUPANO | airport | Venezuela | 9.06 | -63.44 | 485 | 0 | |
| ORIXIMINA | airport | Brazil | -1.71 | -55.84 | 262 | 0 | |
| ORJ (Orinduik Airport) | airport | 4.73 | -60.03 | 1797 | 0 | ||
| ORK (CORK) | airport | Ireland | 51.84 | -8.49 | 502 | 0 | |
| ORKK (KIRKUK AB) | airport | Iraq | 35.47 | 44.35 | 1061 | 0 | |
| ORL (EXECUTIVE) | airport | United States | 28.55 | -81.33 | 113 | 0 | |
| ORLAND | airport | Norway | 63.70 | 9.60 | 28 | 0 | |
| ORLANDO APOPKA | airport | United States | 28.71 | -81.58 | 143 | 0 | |
| ORLANDO CHESINI OMETTO | airport | Brazil | -20.10 | -56.79 | 443 | 0 | |
| ORLANDO HYATT HOUSE | airport | United States | 28.33 | -81.53 | 90 | 0 | |
| ORLANDO INTL | airport | United States | 28.43 | -81.31 | 96 | 0 | |
| ORLANDO NORTH AIRPARK | airport | United States | 28.73 | -81.65 | 80 | 0 | |
| ORLANDO RGNL MEDICAL CENTER | airport | United States | 28.53 | -81.38 | 157 | 0 | |
| ORLANDO SANFORD INTL | airport | United States | 28.78 | -81.24 | 55 | 0 | |
| ORLEANS | airport | United States | 38.66 | -86.44 | 655 | 0 | |
| ORLY | airport | France | 48.73 | 2.36 | 291 | 0 | |
| ORM (Sywell Aerodrome) | airport | 52.31 | -0.79 | 429 | 0 | ||
| ORMM (BASRAH INTL) | airport | Iraq | 30.55 | 47.66 | 11 | 0 | |
| ORMOC | airport | Philippines | 11.06 | 124.57 | 83 | 0 | |
| ORMOND BEACH MUNI | airport | United States | 29.30 | -81.11 | 29 | 0 | |
| ORN (ES SENIA) | airport | Algeria | 35.62 | -0.62 | 295 | 0 | |
| ORNSKOLDSVIK | airport | Sweden | 63.41 | 18.99 | 354 | 0 | |
| ORO (Yoro Airport) | airport | 15.13 | -87.14 | 2215 | 0 | ||
| ORO NEGRO | airport | Venezuela | 10.33 | -71.32 | 164 | 0 | |
| OROCOVIS HEALTH CENTER | airport | United States | 18.23 | -66.39 | 1717 | 0 | |
| OROFINO MUNI | airport | United States | 46.49 | -116.28 | 1005 | 0 | |
| OROGRANDE | airport | United States | 45.73 | -115.53 | 4405 | 0 | |
| OROVILLE MUNI | airport | United States | 39.49 | -121.62 | 192 | 0 | |
| ORP (Orapa Airport) | airport | -21.27 | 25.32 | 3100 | 0 | ||
| ORQW (QAYYARAH WEST) | airport | Iraq | 35.77 | 43.13 | 749 | 0 | |
| ORR | airport | United States | 42.38 | -102.44 | 3827 | 0 | |
| ORR (Yorketown Airport) | airport | -35.00 | 137.62 | 0 | |||
| ORR FIELD | airport | United States | 41.18 | -100.86 | 2860 | 0 | |
| ORR RANCH | airport | United States | 42.39 | -102.58 | 3880 | 0 | |
| ORR RGNL | airport | United States | 48.02 | -92.86 | 1311 | 0 | |
| ORRW (Korean Village Forward Operating Base) | airport | 33.02 | 39.94 | 2442 | 0 | ||
| ORSA | airport | Sweden | 61.19 | 14.71 | 683 | 0 | |
| ORSH (AL SAHRA AAF) | airport | Iraq | 34.67 | 43.54 | 451 | 0 | |
| ORSK | airport | Russia | 51.07 | 58.60 | 909 | 0 | |
| ORSON FIELD | airport | United States | 41.84 | -75.44 | 2100 | 0 | |
| ORSU (SULAYMANIYAH INTL) | airport | Iraq | 35.56 | 45.31 | 2494 | 0 | |
| ORT (NORTHWAY) | airport | United States | 62.96 | -141.93 | 1716 | 0 | |
| ORTF (TALL AFAR) | airport | Iraq | 36.28 | 42.40 | 996 | 0 | |
| ORTHODONTIC STRIP | airport | United States | 41.59 | -86.90 | 805 | 0 | |
| ORTI (AL TAJI AAF) | airport | Iraq | 33.52 | 44.26 | 121 | 0 | |
| ORTL (ALI BASE) | airport | Iraq | 30.94 | 46.09 | 20 | 0 | |
| ORTONVILLE MUNI MARTINSON FLD | airport | United States | 45.31 | -96.42 | 1100 | 0 | |
| ORU (JUAN MENDOZA) | airport | Bolivia | -17.96 | -67.08 | 12146 | 0 | |
| ORUB (UBAYDAH BIN AL JARRAH) | airport | Iraq | 32.48 | 45.76 | 68 | 0 | |
| ORUM AERODROME | airport | United States | 41.54 | -96.27 | 1320 | 0 | |
| ORUQ (Umm Qasr Airport) | airport | 30.02 | 47.92 | 0 | |||
| ORV (ROBERT/BOB/CURTIS MEMORIAL) | airport | United States | 66.82 | -161.02 | 55 | 0 | |
| ORW (Ormara Airport) | airport | 25.27 | 64.59 | 10 | 0 | ||
| ORWH (Washington Army Heliport) | airport | 33.30 | 44.40 | 139 | 0 | ||
| ORX (Oriximiná Airport) | airport | -1.71 | -55.84 | 262 | 0 | ||
| ORY (ORLY) | airport | France | 48.73 | 2.36 | 291 | 0 | |
| ORZ (Orange Walk Airport) | airport | 18.05 | -88.58 | 111 | 0 |