| Olbia to Town and Country (Missouri) | 4,984.74 mi (8,022.17 km) |
| Olbia to Towson (Maryland) | 4,347.50 mi (6,996.63 km) |
| Olbia to Tracy (California) | 6,182.64 mi (9,950.00 km) |
| Olbia to Traverse City (Michigan) | 4,531.23 mi (7,292.31 km) |
| Olbia to Travilah (Maryland) | 4,388.37 mi (7,062.40 km) |
| Olbia to Trenton (Michigan) | 4,532.49 mi (7,294.34 km) |
| Olbia to Trenton (New Jersey) | 4,233.63 mi (6,813.36 km) |
| Olbia to Trenton (Ohio) | 4,691.87 mi (7,550.83 km) |
| Olbia to Triangle (Virginia) | 4,410.63 mi (7,098.23 km) |
| Olbia to Trinity (Florida) | 5,077.49 mi (8,171.43 km) |
| Olbia to Trophy Club (Texas) | 5,523.01 mi (8,888.43 km) |
| Olbia to Trotwood (Ohio) | 4,673.00 mi (7,520.47 km) |
| Olbia to Troutdale (Oregon) | 5,766.13 mi (9,279.69 km) |
| Olbia to Troy (Alabama) | 5,078.52 mi (8,173.08 km) |
| Olbia to Troy (Illinois) | 4,956.09 mi (7,976.06 km) |
