| Biddeford to Pyrzyce | 3,740.78 mi (6,020.20 km) |
| Biddeford to Pyskowice | 3,972.07 mi (6,392.43 km) |
| Biddeford to Raciborz | 3,968.04 mi (6,385.94 km) |
| Biddeford to Radom | 4,030.50 mi (6,486.47 km) |
| Biddeford to Radomsko | 3,979.33 mi (6,404.12 km) |
| Biddeford to Radzionkow Nowy | 3,982.17 mi (6,408.69 km) |
| Biddeford to Radzymin | 3,995.14 mi (6,429.56 km) |
| Biddeford to Radzyn Podlaski | 4,070.18 mi (6,550.32 km) |
| Biddeford to Rawa Mazowiecka | 3,984.37 mi (6,412.22 km) |
| Biddeford to Rawicz | 3,863.61 mi (6,217.89 km) |
| Biddeford to Reda | 3,818.99 mi (6,146.06 km) |
| Biddeford to Rogozno | 3,831.17 mi (6,165.68 km) |
| Biddeford to Ropczyce | 4,097.14 mi (6,593.71 km) |
| Biddeford to Ruda Slaska | 3,985.31 mi (6,413.74 km) |
| Biddeford to Rumia | 3,822.38 mi (6,151.52 km) |
