| Pittsfield to Popovo | 4,697.36 mi (7,559.68 km) |
| Pittsfield to Provadia | 4,751.73 mi (7,647.17 km) |
| Pittsfield to Radnevo | 4,730.48 mi (7,612.97 km) |
| Pittsfield to Radomir | 4,599.52 mi (7,402.22 km) |
| Pittsfield to Rakitovo | 4,669.34 mi (7,514.58 km) |
| Pittsfield to Rakovski | 4,692.12 mi (7,551.24 km) |
| Pittsfield to Razgrad | 4,700.66 mi (7,564.99 km) |
| Pittsfield to Razlog | 4,648.42 mi (7,480.91 km) |
| Pittsfield to Ruse | 4,666.18 mi (7,509.49 km) |
| Pittsfield to Samokov | 4,633.01 mi (7,456.12 km) |
| Pittsfield to Sandanski | 4,654.10 mi (7,490.04 km) |
| Pittsfield to Sevlievo | 4,666.75 mi (7,510.41 km) |
| Pittsfield to Shumen | 4,727.78 mi (7,608.63 km) |
| Pittsfield to Silistra | 4,704.60 mi (7,571.33 km) |
| Pittsfield to Sliven | 4,729.94 mi (7,612.11 km) |
