| Bothell East to Popovo | 5,851.61 mi (9,417.26 km) |
| Bothell East to Provadia | 5,883.37 mi (9,468.37 km) |
| Bothell East to Radnevo | 5,914.06 mi (9,517.76 km) |
| Bothell East to Radomir | 5,841.60 mi (9,401.15 km) |
| Bothell East to Rakitovo | 5,899.83 mi (9,494.87 km) |
| Bothell East to Rakovski | 5,896.97 mi (9,490.25 km) |
| Bothell East to Razgrad | 5,844.76 mi (9,406.23 km) |
| Bothell East to Razlog | 5,894.28 mi (9,485.92 km) |
| Bothell East to Ruse | 5,816.09 mi (9,360.09 km) |
| Bothell East to Samokov | 5,867.00 mi (9,442.03 km) |
| Bothell East to Sandanski | 5,910.79 mi (9,512.50 km) |
| Bothell East to Sevlievo | 5,852.29 mi (9,418.35 km) |
| Bothell East to Shumen | 5,868.24 mi (9,444.01 km) |
| Bothell East to Silistra | 5,819.78 mi (9,366.04 km) |
| Bothell East to Sliven | 5,896.50 mi (9,489.50 km) |
