Navaids
11,009 radio navigation aids (VOR, NDB, DME, TACAN and more).
| Ident | Name | Type |
|---|---|---|
| ORL | Orland | TACAN |
| ORL | Orlando | VORTAC |
| OL | Orly | VOR-DME |
| OAN | Orléans | NDB |
| OAN | Orléans | TACAN |
| OR | Ormara | NDB |
| OMN | Ormond Beach | VORTAC |
| OSK | Ornskoldsvik | VOR-DME |
| OVE | Oroville | NDB |
| ORB | Orr | NDB |
| OR | Orsk | NDB |
| SF | Orsk | NDB |
| ORT | Ortanova | TACAN |
| VVV | Ortonville | NDB |
| ORU | Oruro | NDB |
| CS | Osa | NDB |
| RK | Osaka | NDB |
| OWE | Osaka | VOR-DME |
| OSN | Osan | VORTAC |
| OK | Oscar Kilo | NDB |
| OSE | Oscarville | NDB |
| BPW | Osceola | NDB |
| OEO | Osceola | NDB |
| OU | Osh | NDB |
| DZ | Osh | NDB |
| OO | Oshawa | NDB |
| IOO | Oshawa | DME |
| XAC | Oshima | VORTAC |
| XA | Oshima | NDB |
| OKS | Oshkosh | NDB |
| OSH | Oshkosh | VORTAC |
| OSJ | Osijek | NDB |
| OOA | Oskaloosa | NDB |
| OS | Osmino | NDB |
| OSN | Osnabruck | VOR |
| OSB | Osnabruck | TACAN |
| OSO | Osorno | VOR-DME |
| OSO | Osorno | NDB |
| OS | Ossora | NDB |
| OSS | Ostersund | VOR-DME |
| OST | Ostia | NDB |
| OST | Ostia | VOR-DME |
| OTA | Ostrava | VOR-DME |
| OSW | Oswego | VORTAC |
| DAL | Otaebe | NDB |
| MG | Otims | NDB |
| FMH | Otis | TACAN |
| FMH | Otis | NDB |
| OW | Otjiwarongo | NDB |
| OTL | Otopeni | NDB |