| Rhondda to Tulare (California) | 5,243.00 mi (8,437.79 km) |
| Rhondda to Tullahoma (Tennessee) | 4,066.38 mi (6,544.21 km) |
| Rhondda to Tulsa (Oklahoma) | 4,413.01 mi (7,102.06 km) |
| Rhondda to Tumwater (Washington) | 4,740.93 mi (7,629.79 km) |
| Rhondda to Tupelo (Mississippi) | 4,221.53 mi (6,793.89 km) |
| Rhondda to Turlock (California) | 5,217.10 mi (8,396.12 km) |
| Rhondda to Tuscaloosa (Alabama) | 4,223.25 mi (6,796.67 km) |
| Rhondda to Tustin (California) | 5,332.14 mi (8,581.25 km) |
| Rhondda to Twentynine Palms (California) | 5,250.26 mi (8,449.48 km) |
| Rhondda to Twin Falls (Idaho) | 4,735.00 mi (7,620.25 km) |
| Rhondda to Twin Rivers (New Jersey) | 3,363.31 mi (5,412.73 km) |
| Rhondda to Twinsburg (Ohio) | 3,599.62 mi (5,793.03 km) |
| Rhondda to Two Rivers (Wisconsin) | 3,713.58 mi (5,976.43 km) |
| Rhondda to Tyler (Texas) | 4,581.62 mi (7,373.40 km) |
| Rhondda to Tysons (Virginia) | 3,534.72 mi (5,688.59 km) |
