| Louth to Montana | 1,259.75 mi (2,027.38 km) |
| Louth to Nova Zagora | 1,407.71 mi (2,265.48 km) |
| Louth to Novi Iskar | 1,292.58 mi (2,080.21 km) |
| Louth to Novi Pazar | 1,415.49 mi (2,278.02 km) |
| Louth to Omurtag | 1,395.91 mi (2,246.49 km) |
| Louth to Panagyurishte | 1,337.81 mi (2,153.00 km) |
| Louth to Parvomay | 1,395.41 mi (2,245.70 km) |
| Louth to Pavlikeni | 1,347.25 mi (2,168.19 km) |
| Louth to Pazardzhik | 1,357.50 mi (2,184.69 km) |
| Louth to Pernik | 1,290.18 mi (2,076.34 km) |
| Louth to Peshtera | 1,364.14 mi (2,195.37 km) |
| Louth to Petrich | 1,354.74 mi (2,180.24 km) |
| Louth to Pleven | 1,312.95 mi (2,113.00 km) |
| Louth to Plovdiv | 1,375.49 mi (2,213.63 km) |
| Louth to Pomorie | 1,466.09 mi (2,359.45 km) |
