| Olbia to Great Bend (Kansas) | 5,338.69 mi (8,591.79 km) |
| Olbia to Great Falls (Montana) | 5,334.15 mi (8,584.49 km) |
| Olbia to Great Falls (Virginia) | 4,392.54 mi (7,069.11 km) |
| Olbia to Great Neck (New York) | 4,166.65 mi (6,705.57 km) |
| Olbia to Greeley (Colorado) | 5,469.15 mi (8,801.75 km) |
| Olbia to Green (Ohio) | 4,504.55 mi (7,249.38 km) |
| Olbia to Green Bay (Wisconsin) | 4,636.89 mi (7,462.35 km) |
| Olbia to Green River (Wyoming) | 5,582.18 mi (8,983.64 km) |
| Olbia to Green Valley (Arizona) | 6,140.44 mi (9,882.09 km) |
| Olbia to Green Valley (Maryland) | 4,377.50 mi (7,044.91 km) |
| Olbia to Greenacres (Florida) | 5,021.24 mi (8,080.91 km) |
| Olbia to Greenbelt (Maryland) | 4,374.43 mi (7,039.96 km) |
| Olbia to Greendale (Wisconsin) | 4,701.24 mi (7,565.91 km) |
| Olbia to Greeneville (Tennessee) | 4,752.72 mi (7,648.76 km) |
| Olbia to Greenfield (California) | 6,255.56 mi (10,067.35 km) |
