| Williamsport to Frederick (Colorado) | 1,459.54 mi (2,348.90 km) |
| Williamsport to Frederick (Maryland) | 126.37 mi (203.37 km) |
| Williamsport to Fredericksburg (Texas) | 1,433.99 mi (2,307.79 km) |
| Williamsport to Fredericksburg (Virginia) | 204.58 mi (329.25 km) |
| Williamsport to Frederickson (Washington) | 2,249.94 mi (3,620.92 km) |
| Williamsport to Freeport (Illinois) | 652.66 mi (1,050.35 km) |
| Williamsport to Freeport (New York) | 184.67 mi (297.20 km) |
| Williamsport to Freeport (Texas) | 1,334.67 mi (2,147.95 km) |
| Williamsport to Fremont (California) | 2,387.26 mi (3,841.92 km) |
| Williamsport to Fremont (Nebraska) | 1,006.96 mi (1,620.55 km) |
| Williamsport to Fremont (Ohio) | 315.53 mi (507.79 km) |
| Williamsport to French Valley (California) | 2,240.30 mi (3,605.42 km) |
| Williamsport to Fresno (California) | 2,292.75 mi (3,689.82 km) |
| Williamsport to Fresno (Texas) | 1,311.26 mi (2,110.27 km) |
| Williamsport to Fridley (Minnesota) | 857.90 mi (1,380.65 km) |
