| Gladstone to Montana | 5,533.72 mi (8,905.66 km) |
| Gladstone to Nova Zagora | 5,676.56 mi (9,135.54 km) |
| Gladstone to Novi Iskar | 5,568.40 mi (8,961.48 km) |
| Gladstone to Novi Pazar | 5,672.62 mi (9,129.19 km) |
| Gladstone to Omurtag | 5,659.13 mi (9,107.50 km) |
| Gladstone to Panagyurishte | 5,612.64 mi (9,032.67 km) |
| Gladstone to Parvomay | 5,668.90 mi (9,123.21 km) |
| Gladstone to Pavlikeni | 5,614.58 mi (9,035.80 km) |
| Gladstone to Pazardzhik | 5,632.97 mi (9,065.39 km) |
| Gladstone to Pernik | 5,567.16 mi (8,959.48 km) |
| Gladstone to Peshtera | 5,640.18 mi (9,076.99 km) |
| Gladstone to Petrich | 5,633.23 mi (9,065.81 km) |
| Gladstone to Pleven | 5,582.19 mi (8,983.67 km) |
| Gladstone to Plovdiv | 5,650.09 mi (9,092.94 km) |
| Gladstone to Pomorie | 5,727.02 mi (9,216.75 km) |
