| Swansea to Yonkers (New York) | 870.79 mi (1,401.40 km) |
| Swansea to Yorba Linda (California) | 1,575.59 mi (2,535.66 km) |
| Swansea to York (Pennsylvania) | 715.12 mi (1,150.87 km) |
| Swansea to Yorktown (Indiana) | 264.19 mi (425.17 km) |
| Swansea to Yorkville (Illinois) | 229.39 mi (369.17 km) |
| Swansea to Youngstown (Ohio) | 525.61 mi (845.89 km) |
| Swansea to Youngsville (Louisiana) | 595.26 mi (957.98 km) |
| Swansea to Ypsilanti (Michigan) | 420.85 mi (677.30 km) |
| Swansea to Yuba City (California) | 1,695.15 mi (2,728.08 km) |
| Swansea to Yucaipa (California) | 1,532.91 mi (2,466.99 km) |
| Swansea to Yucca Valley (California) | 1,497.33 mi (2,409.72 km) |
| Swansea to Yukon (Oklahoma) | 477.14 mi (767.89 km) |
| Swansea to Yulee (Florida) | 726.19 mi (1,168.69 km) |
| Swansea to Yuma (Arizona) | 1,435.35 mi (2,309.97 km) |
| Swansea to Zachary (Louisiana) | 548.98 mi (883.50 km) |
