| Antrim to Popovo | 1,645.54 mi (2,648.24 km) |
| Antrim to Provadia | 1,699.29 mi (2,734.74 km) |
| Antrim to Radnevo | 1,681.49 mi (2,706.09 km) |
| Antrim to Radomir | 1,557.25 mi (2,506.15 km) |
| Antrim to Rakitovo | 1,626.34 mi (2,617.34 km) |
| Antrim to Rakovski | 1,645.27 mi (2,647.80 km) |
| Antrim to Razgrad | 1,648.40 mi (2,652.84 km) |
| Antrim to Razlog | 1,608.06 mi (2,587.92 km) |
| Antrim to Ruse | 1,613.95 mi (2,597.41 km) |
| Antrim to Samokov | 1,589.89 mi (2,558.68 km) |
| Antrim to Sandanski | 1,616.33 mi (2,601.23 km) |
| Antrim to Sevlievo | 1,617.09 mi (2,602.46 km) |
| Antrim to Shumen | 1,675.52 mi (2,696.49 km) |
| Antrim to Silistra | 1,651.99 mi (2,658.62 km) |
| Antrim to Sliven | 1,679.27 mi (2,702.52 km) |
