| Portimao to Kinston (North Carolina) | 3,762.72 mi (6,055.51 km) |
| Portimao to Kirkland (Washington) | 5,295.09 mi (8,521.62 km) |
| Portimao to Kirksville (Missouri) | 4,357.62 mi (7,012.91 km) |
| Portimao to Kirkwood (Missouri) | 4,306.13 mi (6,930.05 km) |
| Portimao to Kiryas Joel (New York) | 3,439.25 mi (5,534.93 km) |
| Portimao to Kissimmee (Florida) | 4,178.03 mi (6,723.89 km) |
| Portimao to Klamath Falls (Oregon) | 5,531.05 mi (8,901.36 km) |
| Portimao to Knightdale (North Carolina) | 3,794.77 mi (6,107.10 km) |
| Portimao to Knik-Fairview (Alaska) | 5,280.53 mi (8,498.19 km) |
| Portimao to Knoxville (Tennessee) | 4,066.94 mi (6,545.11 km) |
| Portimao to Kokomo (Indiana) | 4,043.59 mi (6,507.53 km) |
| Portimao to Kuna (Idaho) | 5,266.49 mi (8,475.59 km) |
| Portimao to Kyle (Texas) | 4,972.00 mi (8,001.67 km) |
| Portimao to La Cañada Flintridge (California) | 5,751.76 mi (9,256.56 km) |
| Portimao to La Crescenta-Montrose (California) | 5,752.25 mi (9,257.36 km) |
