| Smederevska Palanka to Olympia Heights (Florida) | 5,512.69 mi (8,871.82 km) |
| Smederevska Palanka to Omaha (Nebraska) | 5,352.09 mi (8,613.36 km) |
| Smederevska Palanka to On Top of the World Designated Place (Florida) | 5,433.35 mi (8,744.12 km) |
| Smederevska Palanka to Onalaska (Wisconsin) | 5,052.15 mi (8,130.65 km) |
| Smederevska Palanka to Oneida (New York) | 4,514.03 mi (7,264.63 km) |
| Smederevska Palanka to Oneonta (New York) | 4,517.20 mi (7,269.73 km) |
| Smederevska Palanka to Ontario (California) | 6,427.21 mi (10,343.60 km) |
| Smederevska Palanka to Ontario (Oregon) | 5,804.54 mi (9,341.51 km) |
| Smederevska Palanka to Opa-locka (Florida) | 5,500.46 mi (8,852.14 km) |
| Smederevska Palanka to Opelika (Alabama) | 5,388.61 mi (8,672.13 km) |
| Smederevska Palanka to Opelousas (Louisiana) | 5,765.57 mi (9,278.79 km) |
| Smederevska Palanka to Orange (California) | 6,447.39 mi (10,376.07 km) |
| Smederevska Palanka to Orange (Texas) | 5,852.35 mi (9,418.45 km) |
| Smederevska Palanka to Orange City (Florida) | 5,398.70 mi (8,688.37 km) |
| Smederevska Palanka to Orangeburg (South Carolina) | 5,162.07 mi (8,307.55 km) |
