| Olbia to Grand Prairie (Texas) | 5,530.63 mi (8,900.69 km) |
| Olbia to Grand Rapids (Michigan) | 4,603.70 mi (7,408.93 km) |
| Olbia to Grand Rapids (Minnesota) | 4,738.59 mi (7,626.03 km) |
| Olbia to Grand Terrace (California) | 6,252.86 mi (10,063.00 km) |
| Olbia to Grandview (Missouri) | 5,141.95 mi (8,275.17 km) |
| Olbia to Grandview (Washington) | 5,657.16 mi (9,104.32 km) |
| Olbia to Grandville (Michigan) | 4,610.29 mi (7,419.54 km) |
| Olbia to Granger (Indiana) | 4,672.49 mi (7,519.65 km) |
| Olbia to Granite Bay (California) | 6,115.37 mi (9,841.74 km) |
| Olbia to Granite City (Illinois) | 4,965.66 mi (7,991.46 km) |
| Olbia to Grants Pass (Oregon) | 5,969.81 mi (9,607.48 km) |
| Olbia to Grantsville (Utah) | 5,731.93 mi (9,224.65 km) |
| Olbia to Grapevine (Texas) | 5,521.34 mi (8,885.74 km) |
| Olbia to Grass Valley (California) | 6,085.46 mi (9,793.60 km) |
| Olbia to Grayslake (Illinois) | 4,726.91 mi (7,607.22 km) |
