| Ottawa to Petersburg (Virginia) | 674.75 mi (1,085.90 km) |
| Ottawa to Pflugerville (Texas) | 898.21 mi (1,445.53 km) |
| Ottawa to Pharr (Texas) | 1,177.38 mi (1,894.81 km) |
| Ottawa to Phelan (California) | 1,627.48 mi (2,619.18 km) |
| Ottawa to Phenix City (Alabama) | 649.41 mi (1,045.13 km) |
| Ottawa to Philadelphia (Pennsylvania) | 722.67 mi (1,163.02 km) |
| Ottawa to Phillipsburg (New Jersey) | 711.98 mi (1,145.82 km) |
| Ottawa to Phoenix (Arizona) | 1,378.98 mi (2,219.25 km) |
| Ottawa to Phoenixville (Pennsylvania) | 700.89 mi (1,127.97 km) |
| Ottawa to Picayune (Mississippi) | 749.30 mi (1,205.89 km) |
| Ottawa to Pickerington (Ohio) | 333.40 mi (536.55 km) |
| Ottawa to Pico Rivera (California) | 1,670.06 mi (2,687.70 km) |
| Ottawa to Piedmont (California) | 1,784.11 mi (2,871.25 km) |
| Ottawa to Pierre (South Dakota) | 617.70 mi (994.10 km) |
| Ottawa to Pike Creek Valley (Delaware) | 697.65 mi (1,122.75 km) |
