| Hertford to Paimio | 1,053.02 mi (1,694.68 km) |
| Hertford to Pargas | 1,036.30 mi (1,667.76 km) |
| Hertford to Pedersore | 1,162.02 mi (1,870.09 km) |
| Hertford to Pieksamaki | 1,238.90 mi (1,993.82 km) |
| Hertford to Pirkkala | 1,111.82 mi (1,789.31 km) |
| Hertford to Pori | 1,058.30 mi (1,703.18 km) |
| Hertford to Porvoo | 1,145.29 mi (1,843.16 km) |
| Hertford to Poytya | 1,057.70 mi (1,702.21 km) |
| Hertford to Raahe | 1,245.47 mi (2,004.39 km) |
| Hertford to Raisio | 1,037.66 mi (1,669.96 km) |
| Hertford to Raseborg | 1,063.37 mi (1,711.33 km) |
| Hertford to Rauma | 1,037.89 mi (1,670.32 km) |
| Hertford to Riihimaki | 1,125.17 mi (1,810.79 km) |
| Hertford to Rovaniemi | 1,347.21 mi (2,168.13 km) |
| Hertford to Saaminki | 1,280.53 mi (2,060.82 km) |
