| Gorna Oryahovitsa to Odessa (Texas) | 6,300.77 mi (10,140.11 km) |
| Gorna Oryahovitsa to Ogden (Utah) | 6,040.78 mi (9,721.69 km) |
| Gorna Oryahovitsa to Oildale (California) | 6,571.79 mi (10,576.27 km) |
| Gorna Oryahovitsa to Ojus (Florida) | 5,742.52 mi (9,241.69 km) |
| Gorna Oryahovitsa to Okemos (Michigan) | 5,097.83 mi (8,204.17 km) |
| Gorna Oryahovitsa to Oklahoma City (Oklahoma) | 5,936.51 mi (9,553.88 km) |
| Gorna Oryahovitsa to Okmulgee (Oklahoma) | 5,876.26 mi (9,456.92 km) |
| Gorna Oryahovitsa to Olathe (Kansas) | 5,659.57 mi (9,108.19 km) |
| Gorna Oryahovitsa to Old Jamestown (Missouri) | 5,502.99 mi (8,856.21 km) |
| Gorna Oryahovitsa to Oldsmar (Florida) | 5,748.02 mi (9,250.54 km) |
| Gorna Oryahovitsa to Olean (New York) | 4,903.95 mi (7,892.15 km) |
| Gorna Oryahovitsa to Olive Branch (Mississippi) | 5,686.91 mi (9,152.20 km) |
| Gorna Oryahovitsa to Olivehurst (California) | 6,398.50 mi (10,297.39 km) |
| Gorna Oryahovitsa to Olney (Maryland) | 4,985.15 mi (8,022.82 km) |
| Gorna Oryahovitsa to Olympia (Washington) | 5,917.62 mi (9,523.50 km) |
