| McCalla to Oswaldtwistle | 4,195.97 mi (6,752.76 km) |
| McCalla to Oswestry | 4,188.25 mi (6,740.34 km) |
| McCalla to Otley | 4,220.00 mi (6,791.44 km) |
| McCalla to Ovenden | 4,216.02 mi (6,785.03 km) |
| McCalla to Oxford | 4,284.39 mi (6,895.06 km) |
| McCalla to Oxted | 4,346.63 mi (6,995.22 km) |
| McCalla to Padbury | 4,291.69 mi (6,906.81 km) |
| McCalla to Padiham | 4,198.04 mi (6,756.09 km) |
| McCalla to Paignton | 4,219.11 mi (6,790.00 km) |
| McCalla to Paisley | 4,077.87 mi (6,562.69 km) |
| McCalla to Palmers Green | 4,333.83 mi (6,974.63 km) |
| McCalla to Parkstone | 4,279.92 mi (6,887.87 km) |
| McCalla to Partick | 4,081.61 mi (6,568.72 km) |
| McCalla to Patcham | 4,350.24 mi (7,001.03 km) |
| McCalla to Peebles | 4,127.72 mi (6,642.93 km) |
