| Tonypandy to Oakley (California) | 5,213.92 mi (8,390.99 km) |
| Tonypandy to Oakton (Virginia) | 3,537.73 mi (5,693.42 km) |
| Tonypandy to Oakville (Missouri) | 4,081.24 mi (6,568.12 km) |
| Tonypandy to Oatfield (Oregon) | 4,819.51 mi (7,756.25 km) |
| Tonypandy to Ocala (Florida) | 4,198.40 mi (6,756.68 km) |
| Tonypandy to Ocean Acres (New Jersey) | 3,375.55 mi (5,432.42 km) |
| Tonypandy to Ocean City (New Jersey) | 3,409.53 mi (5,487.10 km) |
| Tonypandy to Ocean Pines (Maryland) | 3,471.09 mi (5,586.17 km) |
| Tonypandy to Ocean Pointe (Hawaii) | 7,167.35 mi (11,534.74 km) |
| Tonypandy to Ocean Springs (Mississippi) | 4,413.28 mi (7,102.49 km) |
| Tonypandy to Oceanside (California) | 5,342.39 mi (8,597.75 km) |
| Tonypandy to Oceanside (New York) | 3,310.68 mi (5,328.02 km) |
| Tonypandy to Ocoee (Florida) | 4,202.02 mi (6,762.49 km) |
| Tonypandy to Oconomowoc (Wisconsin) | 3,794.20 mi (6,106.17 km) |
| Tonypandy to Odenton (Maryland) | 3,504.83 mi (5,640.48 km) |
