| Abertawe to Orangevale (California) | 5,144.68 mi (8,279.57 km) |
| Abertawe to Orchards (Washington) | 4,788.45 mi (7,706.27 km) |
| Abertawe to Orcutt (California) | 5,336.01 mi (8,587.48 km) |
| Abertawe to Oregon (Ohio) | 3,642.85 mi (5,862.60 km) |
| Abertawe to Oregon (Wisconsin) | 3,817.36 mi (6,143.44 km) |
| Abertawe to Oregon City (Oregon) | 4,809.70 mi (7,740.47 km) |
| Abertawe to Orem (Utah) | 4,749.42 mi (7,643.46 km) |
| Abertawe to Orinda (California) | 5,220.12 mi (8,400.97 km) |
| Abertawe to Orland Park (Illinois) | 3,818.59 mi (6,145.43 km) |
| Abertawe to Orlando (Florida) | 4,177.79 mi (6,723.50 km) |
| Abertawe to Ormond Beach (Florida) | 4,127.24 mi (6,642.15 km) |
| Abertawe to Oro Valley (Arizona) | 5,149.32 mi (8,287.02 km) |
| Abertawe to Oroville (California) | 5,109.22 mi (8,222.49 km) |
| Abertawe to Oshkosh (Wisconsin) | 3,736.48 mi (6,013.28 km) |
| Abertawe to Oskaloosa (Iowa) | 4,016.64 mi (6,464.16 km) |
