| Olbia to Oxford (Alabama) | 4,997.55 mi (8,042.78 km) |
| Olbia to Oxford (Mississippi) | 5,128.96 mi (8,254.26 km) |
| Olbia to Oxford (Ohio) | 4,703.04 mi (7,568.81 km) |
| Olbia to Oxnard (California) | 6,307.57 mi (10,151.05 km) |
| Olbia to Oxon Hill (Maryland) | 4,385.93 mi (7,058.47 km) |
| Olbia to Ozark (Alabama) | 5,078.83 mi (8,173.59 km) |
| Olbia to Ozark (Missouri) | 5,170.09 mi (8,320.46 km) |
| Olbia to Pace (Florida) | 5,184.98 mi (8,344.42 km) |
| Olbia to Pacific Grove (California) | 6,260.45 mi (10,075.22 km) |
| Olbia to Pacifica (California) | 6,221.00 mi (10,011.73 km) |
| Olbia to Paducah (Kentucky) | 4,973.12 mi (8,003.46 km) |
| Olbia to Pahrump (Nevada) | 6,087.49 mi (9,796.86 km) |
| Olbia to Painesville (Ohio) | 4,465.39 mi (7,186.35 km) |
| Olbia to Palatine (Illinois) | 4,736.40 mi (7,622.50 km) |
| Olbia to Palatka (Florida) | 4,968.18 mi (7,995.51 km) |
