| Herndon to Yonkers (New York) | 231.04 mi (371.82 km) |
| Herndon to Yorba Linda (California) | 2,253.71 mi (3,627.00 km) |
| Herndon to York (Pennsylvania) | 77.13 mi (124.13 km) |
| Herndon to Yorktown (Indiana) | 440.61 mi (709.09 km) |
| Herndon to Yorkville (Illinois) | 611.22 mi (983.67 km) |
| Herndon to Youngstown (Ohio) | 226.64 mi (364.75 km) |
| Herndon to Youngsville (Louisiana) | 1,030.96 mi (1,659.17 km) |
| Herndon to Ypsilanti (Michigan) | 397.46 mi (639.65 km) |
| Herndon to Yuba City (California) | 2,350.15 mi (3,782.20 km) |
| Herndon to Yucaipa (California) | 2,211.13 mi (3,558.47 km) |
| Herndon to Yucca Valley (California) | 2,175.65 mi (3,501.37 km) |
| Herndon to Yukon (Oklahoma) | 1,143.27 mi (1,839.91 km) |
| Herndon to Yulee (Florida) | 622.63 mi (1,002.02 km) |
| Herndon to Yuma (Arizona) | 2,113.69 mi (3,401.66 km) |
| Herndon to Zachary (Louisiana) | 967.69 mi (1,557.35 km) |
