| Tonypandy to Odessa (Texas) | 4,876.45 mi (7,847.89 km) |
| Tonypandy to Ogden (Utah) | 4,724.95 mi (7,604.08 km) |
| Tonypandy to Oildale (California) | 5,275.13 mi (8,489.50 km) |
| Tonypandy to Ojus (Florida) | 4,274.93 mi (6,879.83 km) |
| Tonypandy to Okemos (Michigan) | 3,654.30 mi (5,881.03 km) |
| Tonypandy to Oklahoma City (Oklahoma) | 4,506.63 mi (7,252.72 km) |
| Tonypandy to Okmulgee (Oklahoma) | 4,441.24 mi (7,147.49 km) |
| Tonypandy to Olathe (Kansas) | 4,233.90 mi (6,813.80 km) |
| Tonypandy to Old Jamestown (Missouri) | 4,061.20 mi (6,535.87 km) |
| Tonypandy to Oldsmar (Florida) | 4,276.30 mi (6,882.04 km) |
| Tonypandy to Olean (New York) | 3,444.28 mi (5,543.04 km) |
| Tonypandy to Olive Branch (Mississippi) | 4,231.03 mi (6,809.18 km) |
| Tonypandy to Olivehurst (California) | 5,147.81 mi (8,284.60 km) |
| Tonypandy to Olney (Maryland) | 3,516.82 mi (5,659.77 km) |
| Tonypandy to Olympia (Washington) | 4,736.12 mi (7,622.05 km) |
