| Llantrisant to Popovo | 1,482.00 mi (2,385.05 km) |
| Llantrisant to Provadia | 1,538.98 mi (2,476.75 km) |
| Llantrisant to Radnevo | 1,509.95 mi (2,430.02 km) |
| Llantrisant to Radomir | 1,376.05 mi (2,214.54 km) |
| Llantrisant to Rakitovo | 1,445.93 mi (2,327.00 km) |
| Llantrisant to Rakovski | 1,470.06 mi (2,365.83 km) |
| Llantrisant to Razgrad | 1,487.16 mi (2,393.35 km) |
| Llantrisant to Razlog | 1,424.71 mi (2,292.86 km) |
| Llantrisant to Ruse | 1,452.69 mi (2,337.89 km) |
| Llantrisant to Samokov | 1,409.67 mi (2,268.64 km) |
| Llantrisant to Sandanski | 1,430.43 mi (2,302.05 km) |
| Llantrisant to Sevlievo | 1,447.21 mi (2,329.05 km) |
| Llantrisant to Shumen | 1,514.08 mi (2,436.68 km) |
| Llantrisant to Silistra | 1,497.58 mi (2,410.13 km) |
| Llantrisant to Sliven | 1,511.65 mi (2,432.76 km) |
