| Williamsport to Reading (Pennsylvania) | 85.08 mi (136.93 km) |
| Williamsport to Red Bank (New Jersey) | 167.11 mi (268.94 km) |
| Williamsport to Red Bank (Tennessee) | 616.32 mi (991.86 km) |
| Williamsport to Red Bluff (California) | 2,341.72 mi (3,768.63 km) |
| Williamsport to Red Hill (South Carolina) | 526.77 mi (847.76 km) |
| Williamsport to Red Oak (Texas) | 1,242.49 mi (1,999.60 km) |
| Williamsport to Red Wing (Minnesota) | 819.42 mi (1,318.73 km) |
| Williamsport to Redan (Georgia) | 648.52 mi (1,043.68 km) |
| Williamsport to Redding (California) | 2,340.13 mi (3,766.07 km) |
| Williamsport to Redland (Maryland) | 145.62 mi (234.36 km) |
| Williamsport to Redlands (California) | 2,230.39 mi (3,589.47 km) |
| Williamsport to Redmond (Oregon) | 2,222.33 mi (3,576.49 km) |
| Williamsport to Redmond (Washington) | 2,234.37 mi (3,595.86 km) |
| Williamsport to Redondo Beach (California) | 2,298.65 mi (3,699.33 km) |
| Williamsport to Redwood City (California) | 2,400.21 mi (3,862.76 km) |
