| Swansea to Oakleaf Plantation (Florida) | 741.99 mi (1,194.11 km) |
| Swansea to Oakley (California) | 1,711.88 mi (2,755.01 km) |
| Swansea to Oakton (Virginia) | 683.62 mi (1,100.19 km) |
| Swansea to Oakville (Missouri) | 19.41 mi (31.24 km) |
| Swansea to Oatfield (Oregon) | 1,727.40 mi (2,779.98 km) |
| Swansea to Ocala (Florida) | 787.57 mi (1,267.46 km) |
| Swansea to Ocean Acres (New Jersey) | 844.48 mi (1,359.06 km) |
| Swansea to Ocean City (New Jersey) | 827.58 mi (1,331.87 km) |
| Swansea to Ocean Pines (Maryland) | 801.85 mi (1,290.46 km) |
| Swansea to Ocean Pointe (Hawaii) | 4,150.42 mi (6,679.46 km) |
| Swansea to Ocean Springs (Mississippi) | 566.71 mi (912.03 km) |
| Swansea to Oceanside (California) | 1,566.79 mi (2,521.50 km) |
| Swansea to Oceanside (New York) | 880.98 mi (1,417.79 km) |
| Swansea to Ocoee (Florida) | 842.57 mi (1,355.99 km) |
| Swansea to Oconomowoc (Wisconsin) | 323.81 mi (521.11 km) |
