| Kirkwall to Portage (Michigan) | 3,547.60 mi (5,709.32 km) |
| Kirkwall to Portage (Wisconsin) | 3,605.14 mi (5,801.92 km) |
| Kirkwall to Portales (New Mexico) | 4,570.01 mi (7,354.72 km) |
| Kirkwall to Porterville (California) | 4,923.00 mi (7,922.80 km) |
| Kirkwall to Portland (Maine) | 2,946.30 mi (4,741.61 km) |
| Kirkwall to Portland (Oregon) | 4,446.22 mi (7,155.50 km) |
| Kirkwall to Portland (Tennessee) | 3,878.51 mi (6,241.86 km) |
| Kirkwall to Portland (Texas) | 4,733.96 mi (7,618.56 km) |
| Kirkwall to Portsmouth (New Hampshire) | 2,994.85 mi (4,819.74 km) |
| Kirkwall to Portsmouth (Ohio) | 3,639.42 mi (5,857.08 km) |
| Kirkwall to Portsmouth (Virginia) | 3,511.24 mi (5,650.79 km) |
| Kirkwall to Post Falls (Idaho) | 4,176.66 mi (6,721.69 km) |
| Kirkwall to Potomac (Maryland) | 3,426.20 mi (5,513.93 km) |
| Kirkwall to Potomac Park (California) | 4,963.37 mi (7,987.77 km) |
| Kirkwall to Pottstown (Pennsylvania) | 3,307.60 mi (5,323.06 km) |
