| Cosham to Portage (Michigan) | 3,839.05 mi (6,178.36 km) |
| Cosham to Portage (Wisconsin) | 3,927.07 mi (6,320.02 km) |
| Cosham to Portales (New Mexico) | 4,910.66 mi (7,902.95 km) |
| Cosham to Porterville (California) | 5,352.07 mi (8,613.33 km) |
| Cosham to Portland (Maine) | 3,161.90 mi (5,088.59 km) |
| Cosham to Portland (Oregon) | 4,921.56 mi (7,920.48 km) |
| Cosham to Portland (Tennessee) | 4,134.69 mi (6,654.14 km) |
| Cosham to Portland (Texas) | 5,004.32 mi (8,053.67 km) |
| Cosham to Portsmouth (New Hampshire) | 3,207.41 mi (5,161.84 km) |
| Cosham to Portsmouth (Ohio) | 3,889.42 mi (6,259.42 km) |
| Cosham to Portsmouth (Virginia) | 3,703.85 mi (5,960.77 km) |
| Cosham to Post Falls (Idaho) | 4,639.52 mi (7,466.59 km) |
| Cosham to Potomac (Maryland) | 3,642.35 mi (5,861.80 km) |
| Cosham to Potomac Park (California) | 5,389.62 mi (8,673.75 km) |
| Cosham to Pottstown (Pennsylvania) | 3,524.49 mi (5,672.11 km) |
