| Frederick to Plombieres | 3,921.22 mi (6,310.59 km) |
| Frederick to Pont-a-Celles | 3,862.98 mi (6,216.87 km) |
| Frederick to Poperinge | 3,787.86 mi (6,095.97 km) |
| Frederick to Profondeville | 3,887.37 mi (6,256.12 km) |
| Frederick to Putte | 3,859.84 mi (6,211.82 km) |
| Frederick to Puurs | 3,844.98 mi (6,187.90 km) |
| Frederick to Quaregnon | 3,845.11 mi (6,188.10 km) |
| Frederick to Raeren | 3,929.28 mi (6,323.57 km) |
| Frederick to Ranst | 3,852.56 mi (6,200.09 km) |
| Frederick to Ravels | 3,866.15 mi (6,221.96 km) |
| Frederick to Retie | 3,871.46 mi (6,230.51 km) |
| Frederick to Riemst | 3,905.18 mi (6,284.78 km) |
| Frederick to Rijkevorsel | 3,857.28 mi (6,207.70 km) |
| Frederick to Rixensart | 3,864.64 mi (6,219.54 km) |
| Frederick to Rochefort | 3,907.16 mi (6,287.97 km) |
