| Widnes to Popovo | 1,484.58 mi (2,389.20 km) |
| Widnes to Provadia | 1,539.33 mi (2,477.32 km) |
| Widnes to Radnevo | 1,518.45 mi (2,443.70 km) |
| Widnes to Radomir | 1,391.82 mi (2,239.91 km) |
| Widnes to Rakitovo | 1,461.15 mi (2,351.50 km) |
| Widnes to Rakovski | 1,481.28 mi (2,383.89 km) |
| Widnes to Razgrad | 1,488.09 mi (2,394.85 km) |
| Widnes to Razlog | 1,442.24 mi (2,321.06 km) |
| Widnes to Ruse | 1,453.59 mi (2,339.32 km) |
| Widnes to Samokov | 1,424.70 mi (2,292.84 km) |
| Widnes to Sandanski | 1,450.02 mi (2,333.58 km) |
| Widnes to Sevlievo | 1,454.38 mi (2,340.61 km) |
| Widnes to Shumen | 1,515.20 mi (2,438.48 km) |
| Widnes to Silistra | 1,493.73 mi (2,403.92 km) |
| Widnes to Sliven | 1,517.24 mi (2,441.76 km) |
