| Ronkonkoma to Friendly (Maryland) | 247.95 mi (399.04 km) |
| Ronkonkoma to Friendswood (Texas) | 1,464.43 mi (2,356.78 km) |
| Ronkonkoma to Frisco (Texas) | 1,405.06 mi (2,261.22 km) |
| Ronkonkoma to Front Royal (Virginia) | 297.96 mi (479.52 km) |
| Ronkonkoma to Fruit Cove (Florida) | 879.72 mi (1,415.77 km) |
| Ronkonkoma to Fruita (Colorado) | 1,875.62 mi (3,018.51 km) |
| Ronkonkoma to Fruitville (Florida) | 1,071.70 mi (1,724.74 km) |
| Ronkonkoma to Fuller Heights (Florida) | 1,022.47 mi (1,645.50 km) |
| Ronkonkoma to Fullerton (California) | 2,479.48 mi (3,990.33 km) |
| Ronkonkoma to Fullerton (Pennsylvania) | 124.10 mi (199.72 km) |
| Ronkonkoma to Fulshear (Texas) | 1,489.22 mi (2,396.66 km) |
| Ronkonkoma to Fulton (Missouri) | 1,005.99 mi (1,618.98 km) |
| Ronkonkoma to Fulton (New York) | 242.19 mi (389.77 km) |
| Ronkonkoma to Fuquay-Varina (North Carolina) | 472.77 mi (760.85 km) |
| Ronkonkoma to Gadsden (Alabama) | 847.71 mi (1,364.25 km) |
