| Glenpool to Popovo | 5,865.75 mi (9,440.01 km) |
| Glenpool to Provadia | 5,915.37 mi (9,519.87 km) |
| Glenpool to Radnevo | 5,907.91 mi (9,507.87 km) |
| Glenpool to Radomir | 5,788.95 mi (9,316.41 km) |
| Glenpool to Rakitovo | 5,857.62 mi (9,426.93 km) |
| Glenpool to Rakovski | 5,874.22 mi (9,453.64 km) |
| Glenpool to Razgrad | 5,866.29 mi (9,440.89 km) |
| Glenpool to Razlog | 5,840.15 mi (9,398.82 km) |
| Glenpool to Ruse | 5,832.42 mi (9,386.37 km) |
| Glenpool to Samokov | 5,821.22 mi (9,368.35 km) |
| Glenpool to Sandanski | 5,848.78 mi (9,412.71 km) |
| Glenpool to Sevlievo | 5,842.89 mi (9,403.23 km) |
| Glenpool to Shumen | 5,893.20 mi (9,484.18 km) |
| Glenpool to Silistra | 5,862.11 mi (9,434.16 km) |
| Glenpool to Sliven | 5,902.70 mi (9,499.47 km) |
