| Frederick to Roeselare | 3,801.70 mi (6,118.25 km) |
| Frederick to Ronse | 3,826.01 mi (6,157.37 km) |
| Frederick to Rotselaar | 3,865.57 mi (6,221.04 km) |
| Frederick to Rumst | 3,850.27 mi (6,196.41 km) |
| Frederick to Saint-Ghislain | 3,842.63 mi (6,184.12 km) |
| Frederick to Saint-Nicolas | 3,907.21 mi (6,288.05 km) |
| Frederick to Saint-Vith | 3,941.07 mi (6,342.54 km) |
| Frederick to Scherpenheuvel | 3,874.52 mi (6,235.43 km) |
| Frederick to Schilde | 3,852.35 mi (6,199.76 km) |
| Frederick to Schoten | 3,849.24 mi (6,194.76 km) |
| Frederick to Seneffe | 3,858.04 mi (6,208.92 km) |
| Frederick to Seraing | 3,907.23 mi (6,288.09 km) |
| Frederick to Sint-Amandsberg | 3,824.19 mi (6,154.43 km) |
| Frederick to Sint-Andries | 3,797.65 mi (6,111.73 km) |
| Frederick to Sint-Genesius-Rode | 3,856.34 mi (6,206.18 km) |
