| Glencullen to Yonkers (New York) | 3,166.09 mi (5,095.34 km) |
| Glencullen to Yorba Linda (California) | 5,160.69 mi (8,305.33 km) |
| Glencullen to York (Pennsylvania) | 3,324.96 mi (5,351.01 km) |
| Glencullen to Yorktown (Indiana) | 3,662.19 mi (5,893.73 km) |
| Glencullen to Yorkville (Illinois) | 3,706.38 mi (5,964.83 km) |
| Glencullen to Youngstown (Ohio) | 3,429.58 mi (5,519.37 km) |
| Glencullen to Youngsville (Louisiana) | 4,415.85 mi (7,106.62 km) |
| Glencullen to Ypsilanti (Michigan) | 3,494.06 mi (5,623.15 km) |
| Glencullen to Yuba City (California) | 4,986.49 mi (8,024.99 km) |
| Glencullen to Yucaipa (California) | 5,128.36 mi (8,253.29 km) |
| Glencullen to Yucca Valley (California) | 5,102.58 mi (8,211.81 km) |
| Glencullen to Yukon (Oklahoma) | 4,360.86 mi (7,018.13 km) |
| Glencullen to Yulee (Florida) | 3,967.61 mi (6,385.24 km) |
| Glencullen to Yuma (Arizona) | 5,124.23 mi (8,246.65 km) |
| Glencullen to Zachary (Louisiana) | 4,353.47 mi (7,006.24 km) |
