| Columbus to Popovo | 5,186.53 mi (8,346.91 km) |
| Columbus to Provadia | 5,239.18 mi (8,431.64 km) |
| Columbus to Radnevo | 5,223.26 mi (8,406.02 km) |
| Columbus to Radomir | 5,096.67 mi (8,202.30 km) |
| Columbus to Rakitovo | 5,166.19 mi (8,314.19 km) |
| Columbus to Rakovski | 5,186.62 mi (8,347.06 km) |
| Columbus to Razgrad | 5,188.76 mi (8,350.51 km) |
| Columbus to Razlog | 5,146.56 mi (8,282.59 km) |
| Columbus to Ruse | 5,154.43 mi (8,295.25 km) |
| Columbus to Samokov | 5,129.76 mi (8,255.55 km) |
| Columbus to Sandanski | 5,153.39 mi (8,293.58 km) |
| Columbus to Sevlievo | 5,158.88 mi (8,302.41 km) |
| Columbus to Shumen | 5,215.86 mi (8,394.12 km) |
| Columbus to Silistra | 5,189.53 mi (8,351.74 km) |
| Columbus to Sliven | 5,220.90 mi (8,402.22 km) |
