| Athy to Popovo | 1,650.49 mi (2,656.21 km) |
| Athy to Provadia | 1,706.35 mi (2,746.10 km) |
| Athy to Radnevo | 1,681.39 mi (2,705.94 km) |
| Athy to Radomir | 1,550.52 mi (2,495.31 km) |
| Athy to Rakitovo | 1,620.25 mi (2,607.54 km) |
| Athy to Rakovski | 1,642.70 mi (2,643.68 km) |
| Athy to Razgrad | 1,654.79 mi (2,663.12 km) |
| Athy to Razlog | 1,599.92 mi (2,574.83 km) |
| Athy to Ruse | 1,620.27 mi (2,607.57 km) |
| Athy to Samokov | 1,583.87 mi (2,549.00 km) |
| Athy to Sandanski | 1,606.42 mi (2,585.28 km) |
| Athy to Sevlievo | 1,617.96 mi (2,603.86 km) |
| Athy to Shumen | 1,681.83 mi (2,706.65 km) |
| Athy to Silistra | 1,662.55 mi (2,675.62 km) |
| Athy to Sliven | 1,681.70 mi (2,706.43 km) |
