| Potomac to Welwyn Garden City | 3,657.00 mi (5,885.37 km) |
| Potomac to Wembley | 3,658.29 mi (5,887.44 km) |
| Potomac to West Auckland | 3,539.91 mi (5,696.93 km) |
| Potomac to West Boldon | 3,544.98 mi (5,705.09 km) |
| Potomac to West Bridgford | 3,595.83 mi (5,786.93 km) |
| Potomac to West Bromwich | 3,569.33 mi (5,744.29 km) |
| Potomac to West Derby | 3,515.39 mi (5,657.47 km) |
| Potomac to West Drayton | 3,652.55 mi (5,878.21 km) |
| Potomac to West Ham | 3,671.16 mi (5,908.16 km) |
| Potomac to West Wickham | 3,673.55 mi (5,912.00 km) |
| Potomac to Westbury | 3,586.96 mi (5,772.65 km) |
| Potomac to Westhoughton | 3,528.24 mi (5,678.15 km) |
| Potomac to Westminster | 3,666.19 mi (5,900.16 km) |
| Potomac to Weston | 3,520.10 mi (5,665.05 km) |
| Potomac to Weston-super-Mare | 3,552.77 mi (5,717.63 km) |
