| Tigard to Popovo | 6,014.77 mi (9,679.83 km) |
| Tigard to Provadia | 6,046.99 mi (9,731.69 km) |
| Tigard to Radnevo | 6,076.84 mi (9,779.73 km) |
| Tigard to Radomir | 6,003.00 mi (9,660.90 km) |
| Tigard to Rakitovo | 6,061.65 mi (9,755.28 km) |
| Tigard to Rakovski | 6,059.29 mi (9,751.49 km) |
| Tigard to Razgrad | 6,008.08 mi (9,669.06 km) |
| Tigard to Razlog | 6,055.75 mi (9,745.79 km) |
| Tigard to Ruse | 5,979.23 mi (9,622.65 km) |
| Tigard to Samokov | 6,028.65 mi (9,702.18 km) |
| Tigard to Sandanski | 6,072.08 mi (9,772.06 km) |
| Tigard to Sevlievo | 6,014.87 mi (9,680.00 km) |
| Tigard to Shumen | 6,031.67 mi (9,707.04 km) |
| Tigard to Silistra | 5,983.52 mi (9,629.55 km) |
| Tigard to Sliven | 6,059.55 mi (9,751.90 km) |
