| Rock Island to Petaluma (California) | 1,704.31 mi (2,742.82 km) |
| Rock Island to Petersburg (Virginia) | 763.03 mi (1,227.98 km) |
| Rock Island to Pflugerville (Texas) | 855.79 mi (1,377.26 km) |
| Rock Island to Pharr (Texas) | 1,142.66 mi (1,838.94 km) |
| Rock Island to Phelan (California) | 1,538.68 mi (2,476.27 km) |
| Rock Island to Phenix City (Alabama) | 693.72 mi (1,116.43 km) |
| Rock Island to Philadelphia (Pennsylvania) | 813.94 mi (1,309.92 km) |
| Rock Island to Phillipsburg (New Jersey) | 802.85 mi (1,292.05 km) |
| Rock Island to Phoenix (Arizona) | 1,294.05 mi (2,082.57 km) |
| Rock Island to Phoenixville (Pennsylvania) | 792.14 mi (1,274.83 km) |
| Rock Island to Picayune (Mississippi) | 757.42 mi (1,218.95 km) |
| Rock Island to Pickerington (Ohio) | 423.63 mi (681.77 km) |
| Rock Island to Pico Rivera (California) | 1,581.45 mi (2,545.09 km) |
| Rock Island to Piedmont (California) | 1,692.83 mi (2,724.34 km) |
| Rock Island to Pierre (South Dakota) | 531.57 mi (855.48 km) |
