| Thornton Heath to Yonkers (New York) | 3,448.55 mi (5,549.91 km) |
| Thornton Heath to Yorba Linda (California) | 5,440.15 mi (8,755.07 km) |
| Thornton Heath to York (Pennsylvania) | 3,608.13 mi (5,806.73 km) |
| Thornton Heath to Yorktown (Indiana) | 3,948.61 mi (6,354.67 km) |
| Thornton Heath to Yorkville (Illinois) | 3,993.33 mi (6,426.64 km) |
| Thornton Heath to Youngstown (Ohio) | 3,715.11 mi (5,978.89 km) |
| Thornton Heath to Youngsville (Louisiana) | 4,700.45 mi (7,564.64 km) |
| Thornton Heath to Ypsilanti (Michigan) | 3,780.68 mi (6,084.42 km) |
| Thornton Heath to Yuba City (California) | 5,258.08 mi (8,462.07 km) |
| Thornton Heath to Yucaipa (California) | 5,408.29 mi (8,703.80 km) |
| Thornton Heath to Yucca Valley (California) | 5,382.93 mi (8,662.98 km) |
| Thornton Heath to Yukon (Oklahoma) | 4,647.80 mi (7,479.92 km) |
| Thornton Heath to Yulee (Florida) | 4,245.62 mi (6,832.67 km) |
| Thornton Heath to Yuma (Arizona) | 5,406.74 mi (8,701.31 km) |
| Thornton Heath to Zachary (Louisiana) | 4,637.97 mi (7,464.09 km) |
