| Llantrisant to Florence (South Carolina) | 3,861.75 mi (6,214.89 km) |
| Llantrisant to Florence-Graham (California) | 5,337.86 mi (8,590.45 km) |
| Llantrisant to Florham Park (New Jersey) | 3,340.50 mi (5,376.01 km) |
| Llantrisant to Florida (Puerto Rico) | 4,086.02 mi (6,575.81 km) |
| Llantrisant to Florida City (Florida) | 4,317.90 mi (6,948.99 km) |
| Llantrisant to Florida Ridge (Florida) | 4,207.17 mi (6,770.79 km) |
| Llantrisant to Florin (California) | 5,183.27 mi (8,341.67 km) |
| Llantrisant to Florissant (Missouri) | 4,070.02 mi (6,550.07 km) |
| Llantrisant to Flower Hill (Maryland) | 3,525.17 mi (5,673.21 km) |
| Llantrisant to Flower Mound (Texas) | 4,620.03 mi (7,435.22 km) |
| Llantrisant to Flowing Wells (Arizona) | 5,180.94 mi (8,337.92 km) |
| Llantrisant to Foley (Alabama) | 4,372.32 mi (7,036.57 km) |
| Llantrisant to Folsom (California) | 5,164.79 mi (8,311.92 km) |
| Llantrisant to Fond du Lac (Wisconsin) | 3,767.30 mi (6,062.88 km) |
| Llantrisant to Fontana (California) | 5,304.52 mi (8,536.80 km) |
