| Portland to Oststeinbek | 5,048.80 mi (8,125.25 km) |
| Portland to Ottendorf-Okrilla | 5,268.44 mi (8,478.73 km) |
| Portland to Ottersberg | 5,051.89 mi (8,130.23 km) |
| Portland to Ottobrunn | 5,405.40 mi (8,699.15 km) |
| Portland to Ottweiler | 5,219.97 mi (8,400.73 km) |
| Portland to Overath | 5,132.38 mi (8,259.76 km) |
| Portland to Oyten | 5,051.14 mi (8,129.03 km) |
| Portland to Paderborn | 5,122.78 mi (8,244.32 km) |
| Portland to Papenburg | 5,013.58 mi (8,068.58 km) |
| Portland to Parchim | 5,092.52 mi (8,195.62 km) |
| Portland to Pasewalk | 5,133.04 mi (8,260.83 km) |
| Portland to Passau | 5,416.72 mi (8,717.37 km) |
| Portland to Pattensen | 5,114.28 mi (8,230.63 km) |
| Portland to Pegnitz | 5,302.41 mi (8,533.40 km) |
| Portland to Peine | 5,121.72 mi (8,242.61 km) |
