| Ottawa to Point Pleasant (New Jersey) | 776.83 mi (1,250.18 km) |
| Ottawa to Pomona (California) | 1,651.22 mi (2,657.38 km) |
| Ottawa to Pompano Beach (Florida) | 1,155.86 mi (1,860.17 km) |
| Ottawa to Pompton Lakes (New Jersey) | 755.65 mi (1,216.10 km) |
| Ottawa to Pompton Plains (New Jersey) | 754.81 mi (1,214.75 km) |
| Ottawa to Ponca City (Oklahoma) | 545.52 mi (877.93 km) |
| Ottawa to Ponce (Puerto Rico) | 2,079.23 mi (3,346.20 km) |
| Ottawa to Pontiac (Illinois) | 33.62 mi (54.10 km) |
| Ottawa to Pontiac (Michigan) | 298.01 mi (479.61 km) |
| Ottawa to Pooler (Georgia) | 763.64 mi (1,228.96 km) |
| Ottawa to Poplar Bluff (Missouri) | 328.51 mi (528.69 km) |
| Ottawa to Poquoson (Virginia) | 727.36 mi (1,170.58 km) |
| Ottawa to Port Angeles (Washington) | 1,746.38 mi (2,810.53 km) |
| Ottawa to Port Arthur (Texas) | 844.23 mi (1,358.66 km) |
| Ottawa to Port Charlotte (Florida) | 1,063.13 mi (1,710.94 km) |
