| Starse to Olympia Heights (Florida) | 5,223.59 mi (8,406.55 km) |
| Starse to Omaha (Nebraska) | 5,071.48 mi (8,161.76 km) |
| Starse to On Top of the World Designated Place (Florida) | 5,142.98 mi (8,276.83 km) |
| Starse to Onalaska (Wisconsin) | 4,770.42 mi (7,677.26 km) |
| Starse to Oneida (New York) | 4,224.74 mi (6,799.07 km) |
| Starse to Oneonta (New York) | 4,227.55 mi (6,803.58 km) |
| Starse to Ontario (California) | 6,163.62 mi (9,919.38 km) |
| Starse to Ontario (Oregon) | 5,551.33 mi (8,934.01 km) |
| Starse to Opa-locka (Florida) | 5,211.32 mi (8,386.82 km) |
| Starse to Opelika (Alabama) | 5,098.36 mi (8,205.02 km) |
| Starse to Opelousas (Louisiana) | 5,476.28 mi (8,813.22 km) |
| Starse to Orange (California) | 6,183.88 mi (9,952.00 km) |
| Starse to Orange (Texas) | 5,563.48 mi (8,953.55 km) |
| Starse to Orange City (Florida) | 5,108.50 mi (8,221.33 km) |
| Starse to Orangeburg (South Carolina) | 4,871.54 mi (7,839.99 km) |
