| Coralville to Popovo | 5,408.47 mi (8,704.09 km) |
| Coralville to Provadia | 5,457.46 mi (8,782.93 km) |
| Coralville to Radnevo | 5,451.77 mi (8,773.78 km) |
| Coralville to Radomir | 5,334.88 mi (8,585.65 km) |
| Coralville to Rakitovo | 5,403.24 mi (8,695.67 km) |
| Coralville to Rakovski | 5,418.82 mi (8,720.74 km) |
| Coralville to Razgrad | 5,408.68 mi (8,704.43 km) |
| Coralville to Razlog | 5,386.39 mi (8,668.56 km) |
| Coralville to Ruse | 5,374.93 mi (8,650.11 km) |
| Coralville to Samokov | 5,366.89 mi (8,637.18 km) |
| Coralville to Sandanski | 5,395.54 mi (8,683.28 km) |
| Coralville to Sevlievo | 5,386.68 mi (8,669.02 km) |
| Coralville to Shumen | 5,435.52 mi (8,747.62 km) |
| Coralville to Silistra | 5,403.60 mi (8,696.26 km) |
| Coralville to Sliven | 5,445.93 mi (8,764.37 km) |
