| Herndon to Prelouc | 4,342.24 mi (6,988.16 km) |
| Herndon to Prerov | 4,435.53 mi (7,138.30 km) |
| Herndon to Pribram | 4,293.45 mi (6,909.63 km) |
| Herndon to Prostejov | 4,421.78 mi (7,116.16 km) |
| Herndon to Rakovnik | 4,269.04 mi (6,870.35 km) |
| Herndon to Ricany | 4,308.66 mi (6,934.12 km) |
| Herndon to Rokycany | 4,275.36 mi (6,880.52 km) |
| Herndon to Roudnice nad Labem | 4,279.11 mi (6,886.56 km) |
| Herndon to Roznov pod Radhostem | 4,462.11 mi (7,181.08 km) |
| Herndon to Roztoky | 4,293.15 mi (6,909.16 km) |
| Herndon to Rumburk | 4,273.30 mi (6,877.21 km) |
| Herndon to Rychnov nad Kneznou | 4,365.65 mi (7,025.84 km) |
| Herndon to Slany | 4,278.70 mi (6,885.90 km) |
| Herndon to Sokolov | 4,223.70 mi (6,797.39 km) |
| Herndon to Sternberk | 4,420.01 mi (7,113.32 km) |
