| Bad Salzdetfurth to Olympia Heights (Florida) | 4,849.39 mi (7,804.34 km) |
| Bad Salzdetfurth to Omaha (Nebraska) | 4,622.47 mi (7,439.14 km) |
| Bad Salzdetfurth to On Top of the World Designated Place (Florida) | 4,751.47 mi (7,646.75 km) |
| Bad Salzdetfurth to Onalaska (Wisconsin) | 4,323.48 mi (6,957.97 km) |
| Bad Salzdetfurth to Oneida (New York) | 3,805.01 mi (6,123.57 km) |
| Bad Salzdetfurth to Oneonta (New York) | 3,811.01 mi (6,133.22 km) |
| Bad Salzdetfurth to Ontario (California) | 5,700.07 mi (9,173.38 km) |
| Bad Salzdetfurth to Ontario (Oregon) | 5,085.80 mi (8,184.80 km) |
| Bad Salzdetfurth to Opa-locka (Florida) | 4,836.80 mi (7,784.08 km) |
| Bad Salzdetfurth to Opelika (Alabama) | 4,687.85 mi (7,544.37 km) |
| Bad Salzdetfurth to Opelousas (Louisiana) | 5,054.96 mi (8,135.17 km) |
| Bad Salzdetfurth to Orange (California) | 5,720.31 mi (9,205.95 km) |
| Bad Salzdetfurth to Orange (Texas) | 5,139.19 mi (8,270.72 km) |
| Bad Salzdetfurth to Orange City (Florida) | 4,720.51 mi (7,596.93 km) |
| Bad Salzdetfurth to Orangeburg (South Carolina) | 4,470.17 mi (7,194.04 km) |
