| Holladay to Popovo | 6,072.00 mi (9,771.93 km) |
| Holladay to Provadia | 6,112.23 mi (9,836.68 km) |
| Holladay to Radnevo | 6,126.72 mi (9,860.00 km) |
| Holladay to Radomir | 6,032.18 mi (9,707.85 km) |
| Holladay to Rakitovo | 6,096.21 mi (9,810.91 km) |
| Holladay to Rakovski | 6,101.94 mi (9,820.12 km) |
| Holladay to Razgrad | 6,068.27 mi (9,765.93 km) |
| Holladay to Razlog | 6,085.24 mi (9,793.24 km) |
| Holladay to Ruse | 6,036.74 mi (9,715.20 km) |
| Holladay to Samokov | 6,061.15 mi (9,754.47 km) |
| Holladay to Sandanski | 6,098.55 mi (9,814.67 km) |
| Holladay to Sevlievo | 6,062.30 mi (9,756.32 km) |
| Holladay to Shumen | 6,093.71 mi (9,806.87 km) |
| Holladay to Silistra | 6,051.93 mi (9,739.63 km) |
| Holladay to Sliven | 6,114.27 mi (9,839.96 km) |
