| Ariano Irpino to Popovo | 589.32 mi (948.42 km) |
| Ariano Irpino to Provadia | 646.89 mi (1,041.07 km) |
| Ariano Irpino to Radnevo | 564.40 mi (908.31 km) |
| Ariano Irpino to Radomir | 415.77 mi (669.11 km) |
| Ariano Irpino to Rakitovo | 468.26 mi (753.59 km) |
| Ariano Irpino to Rakovski | 515.05 mi (828.90 km) |
| Ariano Irpino to Razgrad | 605.77 mi (974.90 km) |
| Ariano Irpino to Razlog | 436.16 mi (701.94 km) |
| Ariano Irpino to Ruse | 582.99 mi (938.23 km) |
| Ariano Irpino to Samokov | 443.87 mi (714.33 km) |
| Ariano Irpino to Sandanski | 425.71 mi (685.11 km) |
| Ariano Irpino to Sevlievo | 529.67 mi (852.42 km) |
| Ariano Irpino to Shumen | 623.11 mi (1,002.79 km) |
| Ariano Irpino to Silistra | 650.98 mi (1,047.65 km) |
| Ariano Irpino to Sliven | 587.23 mi (945.05 km) |
