| Potomac to Wisbech | 3,652.67 mi (5,878.41 km) |
| Potomac to Wishaw | 3,436.71 mi (5,530.85 km) |
| Potomac to Witham | 3,690.80 mi (5,939.77 km) |
| Potomac to Witney | 3,604.85 mi (5,801.45 km) |
| Potomac to Woking | 3,653.88 mi (5,880.35 km) |
| Potomac to Wokingham | 3,639.27 mi (5,856.83 km) |
| Potomac to Wollaston | 3,563.56 mi (5,735.00 km) |
| Potomac to Wolverhampton | 3,562.49 mi (5,733.28 km) |
| Potomac to Wolverton | 3,626.51 mi (5,836.30 km) |
| Potomac to Wombourn | 3,561.43 mi (5,731.57 km) |
| Potomac to Wombwell | 3,573.44 mi (5,750.90 km) |
| Potomac to Wooburn | 3,641.65 mi (5,860.67 km) |
| Potomac to Wood Green | 3,664.74 mi (5,897.83 km) |
| Potomac to Woodhouse | 3,577.59 mi (5,757.58 km) |
| Potomac to Woodlesford | 3,566.71 mi (5,740.06 km) |
