| Estero to Popovo | 5,806.00 mi (9,343.86 km) |
| Estero to Provadia | 5,863.50 mi (9,436.39 km) |
| Estero to Radnevo | 5,830.41 mi (9,383.14 km) |
| Estero to Radomir | 5,690.07 mi (9,157.28 km) |
| Estero to Rakitovo | 5,759.78 mi (9,269.47 km) |
| Estero to Rakovski | 5,788.29 mi (9,315.36 km) |
| Estero to Razgrad | 5,811.61 mi (9,352.88 km) |
| Estero to Razlog | 5,735.67 mi (9,230.67 km) |
| Estero to Ruse | 5,777.18 mi (9,297.48 km) |
| Estero to Samokov | 5,724.19 mi (9,212.19 km) |
| Estero to Sandanski | 5,738.10 mi (9,234.58 km) |
| Estero to Sevlievo | 5,768.99 mi (9,284.29 km) |
| Estero to Shumen | 5,838.46 mi (9,396.09 km) |
| Estero to Silistra | 5,822.15 mi (9,369.84 km) |
| Estero to Sliven | 5,834.17 mi (9,389.19 km) |
