| Llanelli to Frederick (Maryland) | 3,487.74 mi (5,612.97 km) |
| Llanelli to Fredericksburg (Texas) | 4,796.68 mi (7,719.51 km) |
| Llanelli to Fredericksburg (Virginia) | 3,541.18 mi (5,698.97 km) |
| Llanelli to Frederickson (Washington) | 4,695.70 mi (7,557.00 km) |
| Llanelli to Freeport (Illinois) | 3,845.51 mi (6,188.75 km) |
| Llanelli to Freeport (New York) | 3,277.22 mi (5,274.18 km) |
| Llanelli to Freeport (Texas) | 4,724.84 mi (7,603.89 km) |
| Llanelli to Fremont (California) | 5,224.48 mi (8,407.99 km) |
| Llanelli to Fremont (Nebraska) | 4,143.66 mi (6,668.58 km) |
| Llanelli to Fremont (Ohio) | 3,633.30 mi (5,847.24 km) |
| Llanelli to French Valley (California) | 5,287.94 mi (8,510.12 km) |
| Llanelli to Fresno (California) | 5,197.60 mi (8,364.73 km) |
| Llanelli to Fresno (Texas) | 4,698.88 mi (7,562.11 km) |
| Llanelli to Fridley (Minnesota) | 3,853.34 mi (6,201.35 km) |
| Llanelli to Friendly (Maryland) | 3,499.03 mi (5,631.15 km) |
