| Isabela to Montana | 5,360.14 mi (8,626.31 km) |
| Isabela to Nova Zagora | 5,512.86 mi (8,872.09 km) |
| Isabela to Novi Iskar | 5,376.52 mi (8,652.68 km) |
| Isabela to Novi Pazar | 5,554.03 mi (8,938.35 km) |
| Isabela to Omurtag | 5,520.99 mi (8,885.17 km) |
| Isabela to Panagyurishte | 5,422.68 mi (8,726.96 km) |
| Isabela to Parvomay | 5,480.84 mi (8,820.57 km) |
| Isabela to Pavlikeni | 5,465.17 mi (8,795.34 km) |
| Isabela to Pazardzhik | 5,435.35 mi (8,747.35 km) |
| Isabela to Pernik | 5,364.25 mi (8,632.92 km) |
| Isabela to Peshtera | 5,436.64 mi (8,749.43 km) |
| Isabela to Petrich | 5,393.11 mi (8,679.36 km) |
| Isabela to Pleven | 5,428.17 mi (8,735.79 km) |
| Isabela to Plovdiv | 5,456.86 mi (8,781.97 km) |
| Isabela to Pomorie | 5,589.66 mi (8,995.70 km) |
