| Barstow to Oswaldtwistle | 5,183.07 mi (8,341.35 km) |
| Barstow to Oswestry | 5,200.64 mi (8,369.63 km) |
| Barstow to Otley | 5,198.07 mi (8,365.49 km) |
| Barstow to Ovenden | 5,199.27 mi (8,367.42 km) |
| Barstow to Oxford | 5,307.95 mi (8,542.32 km) |
| Barstow to Oxted | 5,370.99 mi (8,643.78 km) |
| Barstow to Padbury | 5,307.96 mi (8,542.34 km) |
| Barstow to Padiham | 5,183.28 mi (8,341.69 km) |
| Barstow to Paignton | 5,289.75 mi (8,513.03 km) |
| Barstow to Paisley | 5,029.32 mi (8,093.91 km) |
| Barstow to Palmers Green | 5,351.14 mi (8,611.83 km) |
| Barstow to Parkstone | 5,331.93 mi (8,580.91 km) |
| Barstow to Partick | 5,031.72 mi (8,097.78 km) |
| Barstow to Patcham | 5,384.34 mi (8,665.25 km) |
| Barstow to Peebles | 5,075.40 mi (8,168.07 km) |
