| Mountain Ash to Felida (Washington) | 4,804.67 mi (7,732.37 km) |
| Mountain Ash to Fenton (Michigan) | 3,623.99 mi (5,832.25 km) |
| Mountain Ash to Fergus Falls (Minnesota) | 3,927.52 mi (6,320.73 km) |
| Mountain Ash to Ferguson (Missouri) | 4,067.02 mi (6,545.23 km) |
| Mountain Ash to Fernandina Beach (Florida) | 4,098.38 mi (6,595.70 km) |
| Mountain Ash to Ferndale (Maryland) | 3,498.81 mi (5,630.79 km) |
| Mountain Ash to Ferndale (Michigan) | 3,616.11 mi (5,819.57 km) |
| Mountain Ash to Ferndale (Washington) | 4,625.09 mi (7,443.36 km) |
| Mountain Ash to Fernley (Nevada) | 5,047.06 mi (8,122.46 km) |
| Mountain Ash to Ferry Pass (Florida) | 4,343.81 mi (6,990.69 km) |
| Mountain Ash to Festus (Missouri) | 4,096.82 mi (6,593.20 km) |
| Mountain Ash to Fife (Washington) | 4,709.31 mi (7,578.91 km) |
| Mountain Ash to Fillmore (California) | 5,329.38 mi (8,576.81 km) |
| Mountain Ash to Findlay (Ohio) | 3,698.91 mi (5,952.82 km) |
| Mountain Ash to Finneytown (Ohio) | 3,817.04 mi (6,142.94 km) |
