| Big Spring to Portage (Michigan) | 1,109.46 mi (1,785.51 km) |
| Big Spring to Portage (Wisconsin) | 1,017.47 mi (1,637.46 km) |
| Big Spring to Portales (New Mexico) | 172.25 mi (277.20 km) |
| Big Spring to Porterville (California) | 1,036.29 mi (1,667.75 km) |
| Big Spring to Portland (Maine) | 1,860.23 mi (2,993.75 km) |
| Big Spring to Portland (Oregon) | 1,455.13 mi (2,341.81 km) |
| Big Spring to Portland (Tennessee) | 902.79 mi (1,452.90 km) |
| Big Spring to Portland (Texas) | 389.48 mi (626.80 km) |
| Big Spring to Portsmouth (New Hampshire) | 1,824.83 mi (2,936.78 km) |
| Big Spring to Portsmouth (Ohio) | 1,132.96 mi (1,823.32 km) |
| Big Spring to Portsmouth (Virginia) | 1,460.43 mi (2,350.34 km) |
| Big Spring to Post Falls (Idaho) | 1,341.54 mi (2,159.01 km) |
| Big Spring to Potomac (Maryland) | 1,436.77 mi (2,312.26 km) |
| Big Spring to Potomac Park (California) | 1,025.38 mi (1,650.19 km) |
| Big Spring to Pottstown (Pennsylvania) | 1,535.50 mi (2,471.14 km) |
