| Skokie to Popovo | 5,258.10 mi (8,462.10 km) |
| Skokie to Provadia | 5,308.33 mi (8,542.93 km) |
| Skokie to Radnevo | 5,299.35 mi (8,528.48 km) |
| Skokie to Radomir | 5,179.26 mi (8,335.21 km) |
| Skokie to Rakitovo | 5,248.06 mi (8,445.94 km) |
| Skokie to Rakovski | 5,265.19 mi (8,473.50 km) |
| Skokie to Razgrad | 5,258.97 mi (8,463.49 km) |
| Skokie to Razlog | 5,230.32 mi (8,417.39 km) |
| Skokie to Ruse | 5,224.98 mi (8,408.80 km) |
| Skokie to Samokov | 5,211.65 mi (8,387.34 km) |
| Skokie to Sandanski | 5,238.76 mi (8,430.96 km) |
| Skokie to Sevlievo | 5,234.41 mi (8,423.96 km) |
| Skokie to Shumen | 5,285.92 mi (8,506.87 km) |
| Skokie to Silistra | 5,255.77 mi (8,458.35 km) |
| Skokie to Sliven | 5,294.61 mi (8,520.86 km) |
