| Cities | Distance |
|---|
| Opfikon to Popovo | 900.09 mi (1,448.56 km) |
| Opfikon to Provadia | 959.84 mi (1,544.72 km) |
| Opfikon to Radnevo | 918.89 mi (1,478.81 km) |
| Opfikon to Radomir | 778.01 mi (1,252.09 km) |
| Opfikon to Rakitovo | 847.85 mi (1,364.49 km) |
| Opfikon to Rakovski | 876.05 mi (1,409.87 km) |
| Opfikon to Razgrad | 907.95 mi (1,461.20 km) |
| Opfikon to Razlog | 824.71 mi (1,327.24 km) |
| Opfikon to Ruse | 874.22 mi (1,406.93 km) |
| Opfikon to Samokov | 812.06 mi (1,306.88 km) |
| Opfikon to Sandanski | 828.80 mi (1,333.82 km) |
| Opfikon to Sevlievo | 858.76 mi (1,382.03 km) |
| Opfikon to Shumen | 934.06 mi (1,503.22 km) |
| Opfikon to Silistra | 927.05 mi (1,491.94 km) |
| Opfikon to Sliven | 924.59 mi (1,487.98 km) |
