| Dayton to Popovo | 5,242.10 mi (8,436.35 km) |
| Dayton to Provadia | 5,294.45 mi (8,520.60 km) |
| Dayton to Radnevo | 5,279.41 mi (8,496.39 km) |
| Dayton to Radomir | 5,153.60 mi (8,293.91 km) |
| Dayton to Rakitovo | 5,223.05 mi (8,405.69 km) |
| Dayton to Rakovski | 5,243.08 mi (8,437.92 km) |
| Dayton to Razgrad | 5,244.16 mi (8,439.65 km) |
| Dayton to Razlog | 5,203.65 mi (8,374.46 km) |
| Dayton to Ruse | 5,209.86 mi (8,384.46 km) |
| Dayton to Samokov | 5,186.61 mi (8,347.04 km) |
| Dayton to Sandanski | 5,210.67 mi (8,385.77 km) |
| Dayton to Sevlievo | 5,214.94 mi (8,392.64 km) |
| Dayton to Shumen | 5,271.25 mi (8,483.25 km) |
| Dayton to Silistra | 5,244.40 mi (8,440.05 km) |
| Dayton to Sliven | 5,276.75 mi (8,492.11 km) |
