| Sintra to Keizer (Oregon) | 5,331.53 mi (8,580.26 km) |
| Sintra to Keller (Texas) | 4,737.83 mi (7,624.79 km) |
| Sintra to Kelso (Washington) | 5,274.19 mi (8,487.99 km) |
| Sintra to Kemp Mill (Maryland) | 3,545.61 mi (5,706.11 km) |
| Sintra to Ken Caryl (Colorado) | 4,848.08 mi (7,802.22 km) |
| Sintra to Kendale Lakes (Florida) | 4,144.70 mi (6,670.25 km) |
| Sintra to Kendall (Florida) | 4,143.33 mi (6,668.04 km) |
| Sintra to Kendall Park (New Jersey) | 3,389.28 mi (5,454.51 km) |
| Sintra to Kendall West (Florida) | 4,146.40 mi (6,672.99 km) |
| Sintra to Kenmore (New York) | 3,535.89 mi (5,690.46 km) |
| Sintra to Kenmore (Washington) | 5,176.08 mi (8,330.10 km) |
| Sintra to Kenner (Louisiana) | 4,500.21 mi (7,242.39 km) |
| Sintra to Kennesaw (Georgia) | 4,075.31 mi (6,558.58 km) |
| Sintra to Kennett (Missouri) | 4,270.46 mi (6,872.64 km) |
| Sintra to Kennewick (Washington) | 5,137.59 mi (8,268.15 km) |
