| Arcata to Popovo | 6,331.84 mi (10,190.12 km) |
| Arcata to Provadia | 6,364.76 mi (10,243.10 km) |
| Arcata to Radnevo | 6,393.32 mi (10,289.06 km) |
| Arcata to Radomir | 6,317.33 mi (10,166.77 km) |
| Arcata to Rakitovo | 6,376.62 mi (10,262.18 km) |
| Arcata to Rakovski | 6,375.08 mi (10,259.69 km) |
| Arcata to Razgrad | 6,325.40 mi (10,179.74 km) |
| Arcata to Razlog | 6,370.18 mi (10,251.82 km) |
| Arcata to Ruse | 6,296.30 mi (10,132.91 km) |
| Arcata to Samokov | 6,343.37 mi (10,208.67 km) |
| Arcata to Sandanski | 6,386.20 mi (10,277.60 km) |
| Arcata to Sevlievo | 6,331.06 mi (10,188.85 km) |
| Arcata to Shumen | 6,349.17 mi (10,218.00 km) |
| Arcata to Silistra | 6,301.49 mi (10,141.26 km) |
| Arcata to Sliven | 6,376.45 mi (10,261.90 km) |
