| Olbia to Glen Carbon (Illinois) | 4,958.33 mi (7,979.66 km) |
| Olbia to Glen Cove (New York) | 4,159.56 mi (6,694.16 km) |
| Olbia to Glen Ellyn (Illinois) | 4,747.54 mi (7,640.43 km) |
| Olbia to Glen Rock (New Jersey) | 4,178.84 mi (6,725.19 km) |
| Olbia to Glendale (Arizona) | 6,095.08 mi (9,809.09 km) |
| Olbia to Glendale (California) | 6,276.65 mi (10,101.30 km) |
| Olbia to Glendale (Wisconsin) | 4,690.42 mi (7,548.50 km) |
| Olbia to Glendale Heights (Illinois) | 4,746.01 mi (7,637.97 km) |
| Olbia to Glendora (California) | 6,264.99 mi (10,082.53 km) |
| Olbia to Glenmont (Maryland) | 4,378.83 mi (7,047.05 km) |
| Olbia to Glenn Dale (Maryland) | 4,371.04 mi (7,034.51 km) |
| Olbia to Glenn Heights (Texas) | 5,529.91 mi (8,899.53 km) |
| Olbia to Glenpool (Oklahoma) | 5,336.36 mi (8,588.04 km) |
| Olbia to Glens Falls (New York) | 4,077.16 mi (6,561.56 km) |
| Olbia to Glenvar Heights (Florida) | 5,068.86 mi (8,157.54 km) |
