| Issaquah to Popovo | 5,865.92 mi (9,440.28 km) |
| Issaquah to Provadia | 5,897.85 mi (9,491.67 km) |
| Issaquah to Radnevo | 5,928.23 mi (9,540.57 km) |
| Issaquah to Radomir | 5,855.32 mi (9,423.23 km) |
| Issaquah to Rakitovo | 5,913.69 mi (9,517.16 km) |
| Issaquah to Rakovski | 5,910.99 mi (9,512.82 km) |
| Issaquah to Razgrad | 5,859.12 mi (9,429.35 km) |
| Issaquah to Razlog | 5,908.02 mi (9,508.05 km) |
| Issaquah to Ruse | 5,830.39 mi (9,383.11 km) |
| Issaquah to Samokov | 5,880.80 mi (9,464.24 km) |
| Issaquah to Sandanski | 5,924.48 mi (9,534.52 km) |
| Issaquah to Sevlievo | 5,866.39 mi (9,441.05 km) |
| Issaquah to Shumen | 5,882.64 mi (9,467.20 km) |
| Issaquah to Silistra | 5,834.30 mi (9,389.40 km) |
| Issaquah to Sliven | 5,910.77 mi (9,512.46 km) |
