| Merriam to Popovo | 5,655.10 mi (9,101.01 km) |
| Merriam to Provadia | 5,704.03 mi (9,179.74 km) |
| Merriam to Radnevo | 5,698.47 mi (9,170.79 km) |
| Merriam to Radomir | 5,581.54 mi (8,982.61 km) |
| Merriam to Rakitovo | 5,649.91 mi (9,092.66 km) |
| Merriam to Rakovski | 5,665.51 mi (9,117.76 km) |
| Merriam to Razgrad | 5,655.29 mi (9,101.30 km) |
| Merriam to Razlog | 5,633.03 mi (9,065.49 km) |
| Merriam to Ruse | 5,621.54 mi (9,047.00 km) |
| Merriam to Samokov | 5,613.56 mi (9,034.16 km) |
| Merriam to Sandanski | 5,642.14 mi (9,080.15 km) |
| Merriam to Sevlievo | 5,633.37 mi (9,066.03 km) |
| Merriam to Shumen | 5,682.12 mi (9,144.48 km) |
| Merriam to Silistra | 5,650.08 mi (9,092.93 km) |
| Merriam to Sliven | 5,692.59 mi (9,161.34 km) |
