| Williamsport to Rome (New York) | 158.38 mi (254.89 km) |
| Williamsport to Romeoville (Illinois) | 573.28 mi (922.61 km) |
| Williamsport to Romulus (Michigan) | 333.26 mi (536.32 km) |
| Williamsport to Ronkonkoma (New York) | 206.14 mi (331.75 km) |
| Williamsport to Roosevelt (New York) | 184.28 mi (296.57 km) |
| Williamsport to Rosamond (California) | 2,261.50 mi (3,639.54 km) |
| Williamsport to Rosaryville (Maryland) | 171.21 mi (275.53 km) |
| Williamsport to Roscoe (Illinois) | 621.19 mi (999.71 km) |
| Williamsport to Rose Hill (Virginia) | 169.51 mi (272.80 km) |
| Williamsport to Roseburg (Oregon) | 2,342.93 mi (3,770.59 km) |
| Williamsport to Rosedale (California) | 2,298.55 mi (3,699.16 km) |
| Williamsport to Rosedale (Maryland) | 135.10 mi (217.42 km) |
| Williamsport to Roselle (Illinois) | 572.68 mi (921.64 km) |
| Williamsport to Roselle (New Jersey) | 150.49 mi (242.20 km) |
| Williamsport to Roselle Park (New Jersey) | 149.91 mi (241.26 km) |
