| Beaverton to Popovo | 6,011.88 mi (9,675.19 km) |
| Beaverton to Provadia | 6,044.07 mi (9,726.98 km) |
| Beaverton to Radnevo | 6,073.98 mi (9,775.13 km) |
| Beaverton to Radomir | 6,000.25 mi (9,656.47 km) |
| Beaverton to Rakitovo | 6,058.87 mi (9,750.80 km) |
| Beaverton to Rakovski | 6,056.47 mi (9,746.95 km) |
| Beaverton to Razgrad | 6,005.18 mi (9,664.40 km) |
| Beaverton to Razlog | 6,052.99 mi (9,741.35 km) |
| Beaverton to Ruse | 5,976.35 mi (9,618.00 km) |
| Beaverton to Samokov | 6,025.88 mi (9,697.71 km) |
| Beaverton to Sandanski | 6,069.33 mi (9,767.64 km) |
| Beaverton to Sevlievo | 6,012.03 mi (9,675.42 km) |
| Beaverton to Shumen | 6,028.76 mi (9,702.36 km) |
| Beaverton to Silistra | 5,980.59 mi (9,624.83 km) |
| Beaverton to Sliven | 6,056.67 mi (9,747.27 km) |
