| Llanelli to Popovo | 1,517.03 mi (2,441.43 km) |
| Llanelli to Provadia | 1,573.95 mi (2,533.03 km) |
| Llanelli to Radnevo | 1,545.10 mi (2,486.60 km) |
| Llanelli to Radomir | 1,411.25 mi (2,271.19 km) |
| Llanelli to Rakitovo | 1,481.13 mi (2,383.66 km) |
| Llanelli to Rakovski | 1,505.24 mi (2,422.45 km) |
| Llanelli to Razgrad | 1,522.14 mi (2,449.65 km) |
| Llanelli to Razlog | 1,459.91 mi (2,349.51 km) |
| Llanelli to Ruse | 1,487.67 mi (2,394.18 km) |
| Llanelli to Samokov | 1,444.87 mi (2,325.29 km) |
| Llanelli to Sandanski | 1,465.61 mi (2,358.68 km) |
| Llanelli to Sevlievo | 1,482.34 mi (2,385.59 km) |
| Llanelli to Shumen | 1,549.07 mi (2,492.99 km) |
| Llanelli to Silistra | 1,532.40 mi (2,466.16 km) |
| Llanelli to Sliven | 1,546.75 mi (2,489.26 km) |
