| Cwmbran to Yonkers (New York) | 3,323.94 mi (5,349.36 km) |
| Cwmbran to Yorba Linda (California) | 5,333.50 mi (8,583.43 km) |
| Cwmbran to York (Pennsylvania) | 3,483.82 mi (5,606.66 km) |
| Cwmbran to Yorktown (Indiana) | 3,827.14 mi (6,159.19 km) |
| Cwmbran to Yorkville (Illinois) | 3,873.92 mi (6,234.48 km) |
| Cwmbran to Youngstown (Ohio) | 3,592.43 mi (5,781.46 km) |
| Cwmbran to Youngsville (Louisiana) | 4,576.90 mi (7,365.81 km) |
| Cwmbran to Ypsilanti (Michigan) | 3,659.69 mi (5,889.70 km) |
| Cwmbran to Yuba City (California) | 5,158.66 mi (8,302.07 km) |
| Cwmbran to Yucaipa (California) | 5,301.14 mi (8,531.37 km) |
| Cwmbran to Yucca Valley (California) | 5,275.34 mi (8,489.84 km) |
| Cwmbran to Yukon (Oklahoma) | 4,529.07 mi (7,288.84 km) |
| Cwmbran to Yulee (Florida) | 4,119.78 mi (6,630.14 km) |
| Cwmbran to Yuma (Arizona) | 5,296.67 mi (8,524.17 km) |
| Cwmbran to Zachary (Louisiana) | 4,514.35 mi (7,265.14 km) |
