| Balham to Olympia Heights (Florida) | 4,436.27 mi (7,139.49 km) |
| Balham to Omaha (Nebraska) | 4,292.30 mi (6,907.80 km) |
| Balham to On Top of the World Designated Place (Florida) | 4,348.80 mi (6,998.71 km) |
| Balham to Onalaska (Wisconsin) | 3,989.04 mi (6,419.74 km) |
| Balham to Oneida (New York) | 3,427.64 mi (5,516.26 km) |
| Balham to Oneonta (New York) | 3,430.03 mi (5,520.10 km) |
| Balham to Ontario (California) | 5,422.85 mi (8,727.23 km) |
| Balham to Ontario (Oregon) | 4,839.81 mi (7,788.91 km) |
| Balham to Opa-locka (Florida) | 4,423.85 mi (7,119.49 km) |
| Balham to Opelika (Alabama) | 4,300.66 mi (6,921.24 km) |
| Balham to Opelousas (Louisiana) | 4,679.08 mi (7,530.25 km) |
| Balham to Orange (California) | 5,443.25 mi (8,760.06 km) |
| Balham to Orange (Texas) | 4,766.81 mi (7,671.44 km) |
| Balham to Orange City (Florida) | 4,315.44 mi (6,945.03 km) |
| Balham to Orangeburg (South Carolina) | 4,074.84 mi (6,557.82 km) |
