| Galveston to Portage (Michigan) | 1,034.31 mi (1,664.56 km) |
| Galveston to Portage (Wisconsin) | 1,032.50 mi (1,661.64 km) |
| Galveston to Portales (New Mexico) | 602.50 mi (969.63 km) |
| Galveston to Porterville (California) | 1,476.59 mi (2,376.34 km) |
| Galveston to Portland (Maine) | 1,681.96 mi (2,706.86 km) |
| Galveston to Portland (Oregon) | 1,878.37 mi (3,022.95 km) |
| Galveston to Portland (Tennessee) | 701.51 mi (1,128.97 km) |
| Galveston to Portland (Texas) | 174.96 mi (281.57 km) |
| Galveston to Portsmouth (New Hampshire) | 1,639.25 mi (2,638.12 km) |
| Galveston to Portsmouth (Ohio) | 946.86 mi (1,523.82 km) |
| Galveston to Portsmouth (Virginia) | 1,192.21 mi (1,918.68 km) |
| Galveston to Post Falls (Idaho) | 1,734.40 mi (2,791.25 km) |
| Galveston to Potomac (Maryland) | 1,212.93 mi (1,952.02 km) |
| Galveston to Potomac Park (California) | 1,463.70 mi (2,355.60 km) |
| Galveston to Pottstown (Pennsylvania) | 1,326.32 mi (2,134.50 km) |
