| Ottawa to Montgomeryville (Pennsylvania) | 713.89 mi (1,148.89 km) |
| Ottawa to Monticello (Minnesota) | 369.62 mi (594.85 km) |
| Ottawa to Montrose (Colorado) | 1,026.00 mi (1,651.18 km) |
| Ottawa to Moody (Alabama) | 550.90 mi (886.59 km) |
| Ottawa to Moore (Oklahoma) | 626.36 mi (1,008.03 km) |
| Ottawa to Moorestown-Lenola (New Jersey) | 732.05 mi (1,178.12 km) |
| Ottawa to Mooresville (North Carolina) | 587.93 mi (946.19 km) |
| Ottawa to Moorhead (Minnesota) | 546.65 mi (879.74 km) |
| Ottawa to Moorpark (California) | 1,701.62 mi (2,738.50 km) |
| Ottawa to Moraga (California) | 1,778.07 mi (2,861.53 km) |
| Ottawa to Moreno Valley (California) | 1,626.75 mi (2,618.00 km) |
| Ottawa to Morgan City (Louisiana) | 815.86 mi (1,312.99 km) |
| Ottawa to Morgan Hill (California) | 1,769.21 mi (2,847.28 km) |
| Ottawa to Morganton (North Carolina) | 546.21 mi (879.05 km) |
| Ottawa to Morgantown (West Virginia) | 481.16 mi (774.35 km) |
