| Llanelli to Opole | 956.05 mi (1,538.62 km) |
| Llanelli to Orzesze | 999.52 mi (1,608.58 km) |
| Llanelli to Osowa | 954.45 mi (1,536.04 km) |
| Llanelli to Ostroda | 1,015.02 mi (1,633.52 km) |
| Llanelli to Ostroleka | 1,083.60 mi (1,743.88 km) |
| Llanelli to Ostrow Mazowiecka | 1,099.29 mi (1,769.14 km) |
| Llanelli to Ostrow Wielkopolski | 938.34 mi (1,510.11 km) |
| Llanelli to Ostrowiec Swietokrzyski | 1,099.68 mi (1,769.77 km) |
| Llanelli to Ostrzeszow | 945.90 mi (1,522.27 km) |
| Llanelli to Oswiecim | 1,021.71 mi (1,644.29 km) |
| Llanelli to Otwock | 1,078.99 mi (1,736.47 km) |
| Llanelli to Ozarow Mazowiecki | 1,058.43 mi (1,703.38 km) |
| Llanelli to Ozimek | 967.90 mi (1,557.69 km) |
| Llanelli to Ozorkow | 997.09 mi (1,604.67 km) |
| Llanelli to Pabianice | 1,004.66 mi (1,616.84 km) |
