| Wausau to Popovo | 5,175.13 mi (8,328.57 km) |
| Wausau to Provadia | 5,223.38 mi (8,406.21 km) |
| Wausau to Radnevo | 5,219.66 mi (8,400.23 km) |
| Wausau to Radomir | 5,104.95 mi (8,215.63 km) |
| Wausau to Rakitovo | 5,172.97 mi (8,325.08 km) |
| Wausau to Rakovski | 5,187.50 mi (8,348.47 km) |
| Wausau to Razgrad | 5,174.97 mi (8,328.30 km) |
| Wausau to Razlog | 5,156.75 mi (8,298.98 km) |
| Wausau to Ruse | 5,141.36 mi (8,274.22 km) |
| Wausau to Samokov | 5,136.69 mi (8,266.70 km) |
| Wausau to Sandanski | 5,166.39 mi (8,314.51 km) |
| Wausau to Sevlievo | 5,154.51 mi (8,295.38 km) |
| Wausau to Shumen | 5,201.72 mi (8,371.36 km) |
| Wausau to Silistra | 5,168.83 mi (8,318.43 km) |
| Wausau to Sliven | 5,213.13 mi (8,389.73 km) |
