| Estoril to Kinston (North Carolina) | 3,682.04 mi (5,925.67 km) |
| Estoril to Kirkland (Washington) | 5,181.80 mi (8,339.29 km) |
| Estoril to Kirksville (Missouri) | 4,261.62 mi (6,858.41 km) |
| Estoril to Kirkwood (Missouri) | 4,213.22 mi (6,780.52 km) |
| Estoril to Kiryas Joel (New York) | 3,350.10 mi (5,391.47 km) |
| Estoril to Kissimmee (Florida) | 4,106.19 mi (6,608.28 km) |
| Estoril to Klamath Falls (Oregon) | 5,420.61 mi (8,723.62 km) |
| Estoril to Knightdale (North Carolina) | 3,712.67 mi (5,974.97 km) |
| Estoril to Knik-Fairview (Alaska) | 5,163.02 mi (8,309.08 km) |
| Estoril to Knoxville (Tennessee) | 3,981.26 mi (6,407.22 km) |
| Estoril to Kokomo (Indiana) | 3,950.33 mi (6,357.45 km) |
| Estoril to Kuna (Idaho) | 5,157.28 mi (8,299.85 km) |
| Estoril to Kyle (Texas) | 4,885.24 mi (7,862.03 km) |
| Estoril to La Cañada Flintridge (California) | 5,648.11 mi (9,089.76 km) |
| Estoril to La Crescenta-Montrose (California) | 5,648.58 mi (9,090.51 km) |
