| Llanelli to Oakley (California) | 5,188.99 mi (8,350.86 km) |
| Llanelli to Oakton (Virginia) | 3,507.23 mi (5,644.34 km) |
| Llanelli to Oakville (Missouri) | 4,051.63 mi (6,520.47 km) |
| Llanelli to Oatfield (Oregon) | 4,796.26 mi (7,718.83 km) |
| Llanelli to Ocala (Florida) | 4,167.64 mi (6,707.16 km) |
| Llanelli to Ocean Acres (New Jersey) | 3,344.97 mi (5,383.22 km) |
| Llanelli to Ocean City (New Jersey) | 3,378.94 mi (5,437.87 km) |
| Llanelli to Ocean Pines (Maryland) | 3,440.46 mi (5,536.89 km) |
| Llanelli to Ocean Pointe (Hawaii) | 7,150.76 mi (11,508.03 km) |
| Llanelli to Ocean Springs (Mississippi) | 4,382.82 mi (7,053.46 km) |
| Llanelli to Oceanside (California) | 5,315.75 mi (8,554.88 km) |
| Llanelli to Oceanside (New York) | 3,280.14 mi (5,278.88 km) |
| Llanelli to Ocoee (Florida) | 4,171.23 mi (6,712.94 km) |
| Llanelli to Oconomowoc (Wisconsin) | 3,765.08 mi (6,059.31 km) |
| Llanelli to Odenton (Maryland) | 3,474.32 mi (5,591.38 km) |
