| Olbia to Cottage Grove (Oregon) | 5,883.90 mi (9,469.22 km) |
| Olbia to Cottage Lake (Washington) | 5,631.95 mi (9,063.74 km) |
| Olbia to Cottonwood (Arizona) | 6,026.36 mi (9,698.48 km) |
| Olbia to Cottonwood Heights (Utah) | 5,709.43 mi (9,188.44 km) |
| Olbia to Council Bluffs (Iowa) | 5,089.59 mi (8,190.90 km) |
| Olbia to Country Club (Florida) | 5,058.76 mi (8,141.29 km) |
| Olbia to Country Club Hills (Illinois) | 4,745.97 mi (7,637.90 km) |
| Olbia to Country Walk (Florida) | 5,077.97 mi (8,172.21 km) |
| Olbia to Covina (California) | 6,269.22 mi (10,089.33 km) |
| Olbia to Covington (Georgia) | 4,904.82 mi (7,893.55 km) |
| Olbia to Covington (Kentucky) | 4,712.19 mi (7,583.54 km) |
| Olbia to Covington (Louisiana) | 5,326.12 mi (8,571.56 km) |
| Olbia to Covington (Washington) | 5,654.26 mi (9,099.66 km) |
| Olbia to Cranston (Rhode Island) | 4,032.33 mi (6,489.41 km) |
| Olbia to Crawfordsville (Indiana) | 4,773.60 mi (7,682.37 km) |
