| Westbrook to Montgomeryville (Pennsylvania) | 345.82 mi (556.54 km) |
| Westbrook to Monticello (Minnesota) | 1,156.66 mi (1,861.47 km) |
| Westbrook to Montrose (Colorado) | 1,969.04 mi (3,168.86 km) |
| Westbrook to Moody (Alabama) | 1,112.54 mi (1,790.47 km) |
| Westbrook to Moore (Oklahoma) | 1,548.21 mi (2,491.60 km) |
| Westbrook to Moorestown-Lenola (New Jersey) | 350.22 mi (563.63 km) |
| Westbrook to Mooresville (North Carolina) | 789.04 mi (1,269.84 km) |
| Westbrook to Moorhead (Minnesota) | 1,295.31 mi (2,084.59 km) |
| Westbrook to Moorpark (California) | 2,645.99 mi (4,258.31 km) |
| Westbrook to Moraga (California) | 2,694.54 mi (4,336.44 km) |
| Westbrook to Moreno Valley (California) | 2,574.70 mi (4,143.58 km) |
| Westbrook to Morgan City (Louisiana) | 1,498.03 mi (2,410.84 km) |
| Westbrook to Morgan Hill (California) | 2,692.27 mi (4,332.79 km) |
| Westbrook to Morganton (North Carolina) | 814.50 mi (1,310.82 km) |
| Westbrook to Morgantown (West Virginia) | 568.43 mi (914.80 km) |
