| Allouez to Popovo | 5,145.54 mi (8,280.95 km) |
| Allouez to Provadia | 5,194.59 mi (8,359.88 km) |
| Allouez to Radnevo | 5,188.81 mi (8,350.58 km) |
| Allouez to Radomir | 5,071.99 mi (8,162.58 km) |
| Allouez to Rakitovo | 5,140.33 mi (8,272.56 km) |
| Allouez to Rakovski | 5,155.86 mi (8,297.55 km) |
| Allouez to Razgrad | 5,145.78 mi (8,281.34 km) |
| Allouez to Razlog | 5,123.52 mi (8,245.52 km) |
| Allouez to Ruse | 5,112.02 mi (8,226.99 km) |
| Allouez to Samokov | 5,103.98 mi (8,214.07 km) |
| Allouez to Sandanski | 5,132.71 mi (8,260.31 km) |
| Allouez to Sevlievo | 5,123.71 mi (8,245.82 km) |
| Allouez to Shumen | 5,172.63 mi (8,324.54 km) |
| Allouez to Silistra | 5,140.81 mi (8,273.33 km) |
| Allouez to Sliven | 5,182.97 mi (8,341.19 km) |
