| Brilon to Olympia Heights (Florida) | 4,803.23 mi (7,730.04 km) |
| Brilon to Omaha (Nebraska) | 4,602.24 mi (7,406.58 km) |
| Brilon to On Top of the World Designated Place (Florida) | 4,709.48 mi (7,579.17 km) |
| Brilon to Onalaska (Wisconsin) | 4,301.96 mi (6,923.34 km) |
| Brilon to Oneida (New York) | 3,771.20 mi (6,069.15 km) |
| Brilon to Oneonta (New York) | 3,776.08 mi (6,077.01 km) |
| Brilon to Ontario (California) | 5,693.25 mi (9,162.40 km) |
| Brilon to Ontario (Oregon) | 5,085.39 mi (8,184.15 km) |
| Brilon to Opa-locka (Florida) | 4,790.70 mi (7,709.89 km) |
| Brilon to Opelika (Alabama) | 4,651.29 mi (7,485.52 km) |
| Brilon to Opelousas (Louisiana) | 5,022.15 mi (8,082.37 km) |
| Brilon to Orange (California) | 5,713.54 mi (9,195.05 km) |
| Brilon to Orange (Texas) | 5,107.48 mi (8,219.70 km) |
| Brilon to Orange City (Florida) | 4,677.60 mi (7,527.87 km) |
| Brilon to Orangeburg (South Carolina) | 4,430.76 mi (7,130.63 km) |
