| Swinton to Olympia Heights (Florida) | 4,324.52 mi (6,959.64 km) |
| Swinton to Omaha (Nebraska) | 4,139.65 mi (6,662.13 km) |
| Swinton to On Top of the World Designated Place (Florida) | 4,228.37 mi (6,804.90 km) |
| Swinton to Onalaska (Wisconsin) | 3,837.38 mi (6,175.66 km) |
| Swinton to Oneida (New York) | 3,291.70 mi (5,297.48 km) |
| Swinton to Oneonta (New York) | 3,295.91 mi (5,304.26 km) |
| Swinton to Ontario (California) | 5,260.05 mi (8,465.24 km) |
| Swinton to Ontario (Oregon) | 4,673.02 mi (7,520.50 km) |
| Swinton to Opa-locka (Florida) | 4,311.94 mi (6,939.39 km) |
| Swinton to Opelika (Alabama) | 4,170.30 mi (6,711.45 km) |
| Swinton to Opelousas (Louisiana) | 4,543.06 mi (7,311.35 km) |
| Swinton to Orange (California) | 5,280.44 mi (8,498.05 km) |
| Swinton to Orange (Texas) | 4,629.22 mi (7,450.00 km) |
| Swinton to Orange City (Florida) | 4,196.82 mi (6,754.13 km) |
| Swinton to Orangeburg (South Carolina) | 3,949.29 mi (6,355.76 km) |
