| Olbia to Petersburg (Virginia) | 4,464.60 mi (7,185.08 km) |
| Olbia to Pflugerville (Texas) | 5,660.84 mi (9,110.25 km) |
| Olbia to Pharr (Texas) | 5,890.41 mi (9,479.70 km) |
| Olbia to Phelan (California) | 6,237.66 mi (10,038.55 km) |
| Olbia to Phenix City (Alabama) | 5,007.20 mi (8,058.31 km) |
| Olbia to Philadelphia (Pennsylvania) | 4,258.07 mi (6,852.70 km) |
| Olbia to Phillipsburg (New Jersey) | 4,235.92 mi (6,817.06 km) |
| Olbia to Phoenix (Arizona) | 6,090.19 mi (9,801.22 km) |
| Olbia to Phoenixville (Pennsylvania) | 4,270.92 mi (6,873.38 km) |
| Olbia to Picayune (Mississippi) | 5,303.81 mi (8,535.65 km) |
| Olbia to Pickerington (Ohio) | 4,601.89 mi (7,406.02 km) |
| Olbia to Pico Rivera (California) | 6,281.86 mi (10,109.68 km) |
| Olbia to Piedmont (California) | 6,201.30 mi (9,980.04 km) |
| Olbia to Pierre (South Dakota) | 5,115.94 mi (8,233.30 km) |
| Olbia to Pike Creek Valley (Delaware) | 4,293.66 mi (6,909.98 km) |
