| Pont-y-pwl to Odessa (Texas) | 4,889.52 mi (7,868.92 km) |
| Pont-y-pwl to Ogden (Utah) | 4,734.83 mi (7,619.98 km) |
| Pont-y-pwl to Oildale (California) | 5,284.74 mi (8,504.97 km) |
| Pont-y-pwl to Ojus (Florida) | 4,291.66 mi (6,906.76 km) |
| Pont-y-pwl to Okemos (Michigan) | 3,667.97 mi (5,903.02 km) |
| Pont-y-pwl to Oklahoma City (Oklahoma) | 4,519.84 mi (7,273.99 km) |
| Pont-y-pwl to Okmulgee (Oklahoma) | 4,454.65 mi (7,169.07 km) |
| Pont-y-pwl to Olathe (Kansas) | 4,246.91 mi (6,834.73 km) |
| Pont-y-pwl to Old Jamestown (Missouri) | 4,074.84 mi (6,557.83 km) |
| Pont-y-pwl to Oldsmar (Florida) | 4,292.53 mi (6,908.16 km) |
| Pont-y-pwl to Olean (New York) | 3,458.82 mi (5,566.43 km) |
| Pont-y-pwl to Olive Branch (Mississippi) | 4,245.40 mi (6,832.32 km) |
| Pont-y-pwl to Olivehurst (California) | 5,156.34 mi (8,298.33 km) |
| Pont-y-pwl to Olney (Maryland) | 3,532.07 mi (5,684.32 km) |
| Pont-y-pwl to Olympia (Washington) | 4,743.00 mi (7,633.12 km) |
