| Wilmette to Popovo | 5,255.62 mi (8,458.10 km) |
| Wilmette to Provadia | 5,305.83 mi (8,538.91 km) |
| Wilmette to Radnevo | 5,296.89 mi (8,524.53 km) |
| Wilmette to Radomir | 5,176.84 mi (8,331.31 km) |
| Wilmette to Rakitovo | 5,245.64 mi (8,442.04 km) |
| Wilmette to Rakovski | 5,262.74 mi (8,469.57 km) |
| Wilmette to Razgrad | 5,256.47 mi (8,459.48 km) |
| Wilmette to Razlog | 5,227.91 mi (8,413.51 km) |
| Wilmette to Ruse | 5,222.49 mi (8,404.79 km) |
| Wilmette to Samokov | 5,209.22 mi (8,383.43 km) |
| Wilmette to Sandanski | 5,236.35 mi (8,427.09 km) |
| Wilmette to Sevlievo | 5,231.94 mi (8,420.00 km) |
| Wilmette to Shumen | 5,283.43 mi (8,502.86 km) |
| Wilmette to Silistra | 5,253.26 mi (8,454.30 km) |
| Wilmette to Sliven | 5,292.14 mi (8,516.88 km) |
