| Mountain Ash to Frederick (Maryland) | 3,519.94 mi (5,664.80 km) |
| Mountain Ash to Fredericksburg (Texas) | 4,827.56 mi (7,769.21 km) |
| Mountain Ash to Fredericksburg (Virginia) | 3,573.55 mi (5,751.08 km) |
| Mountain Ash to Frederickson (Washington) | 4,717.47 mi (7,592.04 km) |
| Mountain Ash to Freeport (Illinois) | 3,875.52 mi (6,237.04 km) |
| Mountain Ash to Freeport (New York) | 3,309.62 mi (5,326.31 km) |
| Mountain Ash to Freeport (Texas) | 4,756.44 mi (7,654.76 km) |
| Mountain Ash to Fremont (California) | 5,248.81 mi (8,447.14 km) |
| Mountain Ash to Fremont (Nebraska) | 4,172.73 mi (6,715.36 km) |
| Mountain Ash to Fremont (Ohio) | 3,664.46 mi (5,897.39 km) |
| Mountain Ash to French Valley (California) | 5,314.44 mi (8,552.76 km) |
| Mountain Ash to Fresno (California) | 5,222.69 mi (8,405.11 km) |
| Mountain Ash to Fresno (Texas) | 4,730.38 mi (7,612.81 km) |
| Mountain Ash to Fridley (Minnesota) | 3,882.04 mi (6,247.54 km) |
| Mountain Ash to Friendly (Maryland) | 3,531.39 mi (5,683.22 km) |
