| South Portland to Paimio | 3,761.02 mi (6,052.77 km) |
| South Portland to Pargas | 3,753.61 mi (6,040.85 km) |
| South Portland to Pedersore | 3,662.79 mi (5,894.69 km) |
| South Portland to Pieksamaki | 3,829.59 mi (6,163.13 km) |
| South Portland to Pirkkala | 3,757.09 mi (6,046.45 km) |
| South Portland to Pori | 3,702.02 mi (5,957.83 km) |
| South Portland to Porvoo | 3,851.78 mi (6,198.84 km) |
| South Portland to Poytya | 3,749.58 mi (6,034.37 km) |
| South Portland to Raahe | 3,680.44 mi (5,923.09 km) |
| South Portland to Raisio | 3,743.80 mi (6,025.06 km) |
| South Portland to Raseborg | 3,798.56 mi (6,113.20 km) |
| South Portland to Rauma | 3,703.68 mi (5,960.50 km) |
| South Portland to Riihimaki | 3,813.78 mi (6,137.69 km) |
| South Portland to Rovaniemi | 3,658.55 mi (5,887.87 km) |
| South Portland to Saaminki | 3,893.42 mi (6,265.85 km) |
