| Willoughby to River Grove (Illinois) | 331.72 mi (533.86 km) |
| Willoughby to River Ridge (Louisiana) | 945.25 mi (1,521.23 km) |
| Willoughby to Riverbank (California) | 2,100.93 mi (3,381.12 km) |
| Willoughby to Riverdale (Georgia) | 581.98 mi (936.60 km) |
| Willoughby to Riverdale (Illinois) | 321.50 mi (517.41 km) |
| Willoughby to Riverside (California) | 2,019.74 mi (3,250.46 km) |
| Willoughby to Riverside (Ohio) | 191.69 mi (308.50 km) |
| Willoughby to Riverton (Utah) | 1,584.91 mi (2,550.66 km) |
| Willoughby to Riverton (Wyoming) | 1,376.55 mi (2,215.34 km) |
| Willoughby to Riverview (Florida) | 956.42 mi (1,539.21 km) |
| Willoughby to Riverview (Michigan) | 98.78 mi (158.97 km) |
| Willoughby to Riviera Beach (Florida) | 1,029.83 mi (1,657.35 km) |
| Willoughby to Riviera Beach (Maryland) | 308.86 mi (497.06 km) |
| Willoughby to Roanoke (Virginia) | 311.50 mi (501.32 km) |
| Willoughby to Roanoke Rapids (North Carolina) | 411.98 mi (663.02 km) |
