| Pontypridd to Mitchell (South Dakota) | 4,122.55 mi (6,634.60 km) |
| Pontypridd to Mitchellville (Maryland) | 3,520.47 mi (5,665.65 km) |
| Pontypridd to Moberly (Missouri) | 4,121.69 mi (6,633.22 km) |
| Pontypridd to Mobile (Alabama) | 4,377.15 mi (7,044.35 km) |
| Pontypridd to Modesto (California) | 5,217.09 mi (8,396.09 km) |
| Pontypridd to Mokena (Illinois) | 3,846.64 mi (6,190.57 km) |
| Pontypridd to Moline (Illinois) | 3,949.55 mi (6,356.18 km) |
| Pontypridd to Moncks Corner (South Carolina) | 3,919.11 mi (6,307.20 km) |
| Pontypridd to Monfort Heights (Ohio) | 3,825.79 mi (6,157.01 km) |
| Pontypridd to Monmouth (Oregon) | 4,873.17 mi (7,842.62 km) |
| Pontypridd to Monroe (Georgia) | 4,043.00 mi (6,506.59 km) |
| Pontypridd to Monroe (Louisiana) | 4,446.20 mi (7,155.47 km) |
| Pontypridd to Monroe (Michigan) | 3,653.75 mi (5,880.14 km) |
| Pontypridd to Monroe (North Carolina) | 3,855.08 mi (6,204.15 km) |
| Pontypridd to Monroe (Ohio) | 3,804.06 mi (6,122.04 km) |
