| Holyhead to Glen Carbon (Illinois) | 3,961.24 mi (6,374.99 km) |
| Holyhead to Glen Cove (New York) | 3,222.09 mi (5,185.44 km) |
| Holyhead to Glen Ellyn (Illinois) | 3,739.39 mi (6,017.96 km) |
| Holyhead to Glen Rock (New Jersey) | 3,238.01 mi (5,211.07 km) |
| Holyhead to Glendale (Arizona) | 5,041.20 mi (8,113.02 km) |
| Holyhead to Glendale (California) | 5,207.82 mi (8,381.18 km) |
| Holyhead to Glendale (Wisconsin) | 3,675.36 mi (5,914.92 km) |
| Holyhead to Glendale Heights (Illinois) | 3,737.48 mi (6,014.90 km) |
| Holyhead to Glendora (California) | 5,196.96 mi (8,363.71 km) |
| Holyhead to Glenmont (Maryland) | 3,440.36 mi (5,536.73 km) |
| Holyhead to Glenn Dale (Maryland) | 3,434.63 mi (5,527.50 km) |
| Holyhead to Glenn Heights (Texas) | 4,537.68 mi (7,302.70 km) |
| Holyhead to Glenpool (Oklahoma) | 4,329.86 mi (6,968.23 km) |
| Holyhead to Glens Falls (New York) | 3,116.71 mi (5,015.87 km) |
| Holyhead to Glenvar Heights (Florida) | 4,231.99 mi (6,810.73 km) |
