| Uckfield to Olympia Heights (Florida) | 4,452.62 mi (7,165.81 km) |
| Uckfield to Omaha (Nebraska) | 4,319.07 mi (6,950.86 km) |
| Uckfield to On Top of the World Designated Place (Florida) | 4,367.23 mi (7,028.37 km) |
| Uckfield to Onalaska (Wisconsin) | 4,015.55 mi (6,462.40 km) |
| Uckfield to Oneida (New York) | 3,450.05 mi (5,552.33 km) |
| Uckfield to Oneonta (New York) | 3,451.98 mi (5,555.43 km) |
| Uckfield to Ontario (California) | 5,452.71 mi (8,775.28 km) |
| Uckfield to Ontario (Oregon) | 4,871.20 mi (7,839.44 km) |
| Uckfield to Opa-locka (Florida) | 4,440.24 mi (7,145.87 km) |
| Uckfield to Opelika (Alabama) | 4,321.52 mi (6,954.82 km) |
| Uckfield to Opelousas (Louisiana) | 4,701.32 mi (7,566.05 km) |
| Uckfield to Orange (California) | 5,473.11 mi (8,808.12 km) |
| Uckfield to Orange (Texas) | 4,789.44 mi (7,707.87 km) |
| Uckfield to Orange City (Florida) | 4,333.44 mi (6,974.00 km) |
| Uckfield to Orangeburg (South Carolina) | 4,094.56 mi (6,589.55 km) |
