| Dupnitsa to Oakley (California) | 6,466.57 mi (10,406.95 km) |
| Dupnitsa to Oakton (Virginia) | 4,937.03 mi (7,945.38 km) |
| Dupnitsa to Oakville (Missouri) | 5,471.05 mi (8,804.81 km) |
| Dupnitsa to Oatfield (Oregon) | 6,021.35 mi (9,690.42 km) |
| Dupnitsa to Ocala (Florida) | 5,591.40 mi (8,998.48 km) |
| Dupnitsa to Ocean Acres (New Jersey) | 4,774.43 mi (7,683.70 km) |
| Dupnitsa to Ocean City (New Jersey) | 4,808.23 mi (7,738.10 km) |
| Dupnitsa to Ocean Pines (Maryland) | 4,869.38 mi (7,836.50 km) |
| Dupnitsa to Ocean Pointe (Hawaii) | 8,043.27 mi (12,944.39 km) |
| Dupnitsa to Ocean Springs (Mississippi) | 5,812.64 mi (9,354.54 km) |
| Dupnitsa to Oceanside (California) | 6,649.45 mi (10,701.26 km) |
| Dupnitsa to Oceanside (New York) | 4,709.81 mi (7,579.71 km) |
| Dupnitsa to Ocoee (Florida) | 5,592.85 mi (9,000.82 km) |
| Dupnitsa to Oconomowoc (Wisconsin) | 5,175.09 mi (8,328.50 km) |
| Dupnitsa to Odenton (Maryland) | 4,904.08 mi (7,892.35 km) |
