| Biddeford to Rury | 4,086.35 mi (6,576.34 km) |
| Biddeford to Rybnik | 3,980.12 mi (6,405.38 km) |
| Biddeford to Ryki | 4,050.58 mi (6,518.77 km) |
| Biddeford to Rypin | 3,909.89 mi (6,292.36 km) |
| Biddeford to Rzeszow | 4,112.09 mi (6,617.77 km) |
| Biddeford to Sandomierz | 4,078.68 mi (6,564.00 km) |
| Biddeford to Sanok | 4,138.34 mi (6,660.01 km) |
| Biddeford to Sedziszow Malopolski | 4,099.63 mi (6,597.72 km) |
| Biddeford to Sepolno Krajenskie | 3,827.62 mi (6,159.96 km) |
| Biddeford to Sidlice | 3,837.23 mi (6,175.43 km) |
| Biddeford to Siechnice | 3,894.02 mi (6,266.82 km) |
| Biddeford to Siedlce | 4,043.45 mi (6,507.31 km) |
| Biddeford to Siemianowice Slaskie | 3,989.86 mi (6,421.06 km) |
| Biddeford to Siemiatycze | 4,055.09 mi (6,526.04 km) |
| Biddeford to Sieradz | 3,934.63 mi (6,332.18 km) |
