| Billericay to Popovo | 1,324.70 mi (2,131.90 km) |
| Billericay to Provadia | 1,380.97 mi (2,222.46 km) |
| Billericay to Radnevo | 1,354.92 mi (2,180.54 km) |
| Billericay to Radomir | 1,224.18 mi (1,970.12 km) |
| Billericay to Rakitovo | 1,293.87 mi (2,082.28 km) |
| Billericay to Rakovski | 1,316.16 mi (2,118.16 km) |
| Billericay to Razgrad | 1,329.30 mi (2,139.30 km) |
| Billericay to Razlog | 1,273.78 mi (2,049.95 km) |
| Billericay to Ruse | 1,294.79 mi (2,083.77 km) |
| Billericay to Samokov | 1,257.48 mi (2,023.71 km) |
| Billericay to Sandanski | 1,280.58 mi (2,060.89 km) |
| Billericay to Sevlievo | 1,291.59 mi (2,078.61 km) |
| Billericay to Shumen | 1,356.31 mi (2,182.76 km) |
| Billericay to Silistra | 1,338.27 mi (2,153.74 km) |
| Billericay to Sliven | 1,355.47 mi (2,181.42 km) |
