| Eltham to Olympia Heights (Florida) | 4,444.87 mi (7,153.32 km) |
| Eltham to Omaha (Nebraska) | 4,299.47 mi (6,919.32 km) |
| Eltham to On Top of the World Designated Place (Florida) | 4,357.23 mi (7,012.28 km) |
| Eltham to Onalaska (Wisconsin) | 3,996.26 mi (6,431.36 km) |
| Eltham to Oneida (New York) | 3,435.62 mi (5,529.10 km) |
| Eltham to Oneonta (New York) | 3,438.07 mi (5,533.04 km) |
| Eltham to Ontario (California) | 5,429.10 mi (8,737.29 km) |
| Eltham to Ontario (Oregon) | 4,845.43 mi (7,797.96 km) |
| Eltham to Opa-locka (Florida) | 4,432.44 mi (7,133.32 km) |
| Eltham to Opelika (Alabama) | 4,308.84 mi (6,934.40 km) |
| Eltham to Opelousas (Louisiana) | 4,687.08 mi (7,543.12 km) |
| Eltham to Orange (California) | 5,449.50 mi (8,770.12 km) |
| Eltham to Orange (Texas) | 4,774.75 mi (7,684.21 km) |
| Eltham to Orange City (Florida) | 4,323.91 mi (6,958.66 km) |
| Eltham to Orangeburg (South Carolina) | 4,083.15 mi (6,571.19 km) |
