| Llantrisant to River Ridge (Louisiana) | 4,499.42 mi (7,241.12 km) |
| Llantrisant to Riverbank (California) | 5,212.04 mi (8,387.96 km) |
| Llantrisant to Riverdale (Georgia) | 4,082.75 mi (6,570.55 km) |
| Llantrisant to Riverdale (Illinois) | 3,832.70 mi (6,168.13 km) |
| Llantrisant to Riverside (California) | 5,311.26 mi (8,547.64 km) |
| Llantrisant to Riverside (Ohio) | 3,779.08 mi (6,081.84 km) |
| Llantrisant to Riverton (Utah) | 4,768.89 mi (7,674.78 km) |
| Llantrisant to Riverton (Wyoming) | 4,517.65 mi (7,270.46 km) |
| Llantrisant to Riverview (Florida) | 4,276.38 mi (6,882.16 km) |
| Llantrisant to Riverview (Michigan) | 3,635.23 mi (5,850.34 km) |
| Llantrisant to Riviera Beach (Florida) | 4,233.83 mi (6,813.69 km) |
| Llantrisant to Riviera Beach (Maryland) | 3,498.34 mi (5,630.04 km) |
| Llantrisant to Roanoke (Virginia) | 3,724.49 mi (5,993.98 km) |
| Llantrisant to Roanoke Rapids (North Carolina) | 3,667.06 mi (5,901.56 km) |
| Llantrisant to Robbinsdale (Minnesota) | 3,892.62 mi (6,264.57 km) |
