| Gurnee to Popovo | 5,248.21 mi (8,446.17 km) |
| Gurnee to Provadia | 5,298.22 mi (8,526.66 km) |
| Gurnee to Radnevo | 5,289.83 mi (8,513.16 km) |
| Gurnee to Radomir | 5,170.32 mi (8,320.82 km) |
| Gurnee to Rakitovo | 5,239.05 mi (8,431.43 km) |
| Gurnee to Rakovski | 5,255.88 mi (8,458.53 km) |
| Gurnee to Razgrad | 5,248.96 mi (8,447.38 km) |
| Gurnee to Razlog | 5,221.48 mi (8,403.15 km) |
| Gurnee to Ruse | 5,215.01 mi (8,392.75 km) |
| Gurnee to Samokov | 5,202.64 mi (8,372.84 km) |
| Gurnee to Sandanski | 5,230.05 mi (8,416.94 km) |
| Gurnee to Sevlievo | 5,224.85 mi (8,408.59 km) |
| Gurnee to Shumen | 5,275.89 mi (8,490.73 km) |
| Gurnee to Silistra | 5,245.43 mi (8,441.71 km) |
| Gurnee to Sliven | 5,284.89 mi (8,505.21 km) |
