| Willoughby to Rome (New York) | 320.81 mi (516.29 km) |
| Willoughby to Romeoville (Illinois) | 345.43 mi (555.92 km) |
| Willoughby to Romulus (Michigan) | 108.25 mi (174.20 km) |
| Willoughby to Ronkonkoma (New York) | 434.23 mi (698.82 km) |
| Willoughby to Roosevelt (New York) | 412.30 mi (663.53 km) |
| Willoughby to Rosamond (California) | 2,034.81 mi (3,274.70 km) |
| Willoughby to Rosaryville (Maryland) | 312.99 mi (503.71 km) |
| Willoughby to Roscoe (Illinois) | 393.58 mi (633.40 km) |
| Willoughby to Rose Hill (Virginia) | 300.73 mi (483.97 km) |
| Willoughby to Roseburg (Oregon) | 2,119.13 mi (3,410.40 km) |
| Willoughby to Rosedale (California) | 2,071.25 mi (3,333.35 km) |
| Willoughby to Rosedale (Maryland) | 303.21 mi (487.97 km) |
| Willoughby to Roselle (Illinois) | 344.57 mi (554.53 km) |
| Willoughby to Roselle (New Jersey) | 378.08 mi (608.45 km) |
| Willoughby to Roselle Park (New Jersey) | 377.54 mi (607.59 km) |
