| Sintra to Friendswood (Texas) | 4,768.10 mi (7,673.52 km) |
| Sintra to Frisco (Texas) | 4,709.83 mi (7,579.74 km) |
| Sintra to Front Royal (Virginia) | 3,606.23 mi (5,803.66 km) |
| Sintra to Fruit Cove (Florida) | 4,053.50 mi (6,523.47 km) |
| Sintra to Fruita (Colorado) | 5,022.40 mi (8,082.77 km) |
| Sintra to Fruitville (Florida) | 4,194.44 mi (6,750.30 km) |
| Sintra to Fuller Heights (Florida) | 4,149.09 mi (6,677.31 km) |
| Sintra to Fullerton (California) | 5,647.87 mi (9,089.37 km) |
| Sintra to Fullerton (Pennsylvania) | 3,429.21 mi (5,518.79 km) |
| Sintra to Fulshear (Texas) | 4,795.22 mi (7,717.16 km) |
| Sintra to Fulton (Missouri) | 4,274.00 mi (6,878.33 km) |
| Sintra to Fulton (New York) | 3,411.19 mi (5,489.78 km) |
| Sintra to Fuquay-Varina (North Carolina) | 3,731.01 mi (6,004.47 km) |
| Sintra to Gadsden (Alabama) | 4,146.13 mi (6,672.56 km) |
| Sintra to Gaffney (South Carolina) | 3,892.38 mi (6,264.18 km) |
