| Panagyurishte to Olympia Heights (Florida) | 5,715.56 mi (9,198.30 km) |
| Panagyurishte to Omaha (Nebraska) | 5,556.26 mi (8,941.93 km) |
| Panagyurishte to On Top of the World Designated Place (Florida) | 5,638.38 mi (9,074.09 km) |
| Panagyurishte to Onalaska (Wisconsin) | 5,256.82 mi (8,460.03 km) |
| Panagyurishte to Oneida (New York) | 4,720.85 mi (7,597.48 km) |
| Panagyurishte to Oneonta (New York) | 4,723.98 mi (7,602.52 km) |
| Panagyurishte to Ontario (California) | 6,622.42 mi (10,657.75 km) |
| Panagyurishte to Ontario (Oregon) | 5,994.15 mi (9,646.65 km) |
| Panagyurishte to Opa-locka (Florida) | 5,703.38 mi (9,178.71 km) |
| Panagyurishte to Opelika (Alabama) | 5,595.14 mi (9,004.50 km) |
| Panagyurishte to Opelousas (Louisiana) | 5,972.40 mi (9,611.65 km) |
| Panagyurishte to Orange (California) | 6,642.54 mi (10,690.13 km) |
| Panagyurishte to Orange (Texas) | 6,059.17 mi (9,751.30 km) |
| Panagyurishte to Orange City (Florida) | 5,603.36 mi (9,017.74 km) |
| Panagyurishte to Orangeburg (South Carolina) | 5,368.05 mi (8,639.04 km) |
