| Oklahoma City to Montgomeryville (Pennsylvania) | 1,255.38 mi (2,020.35 km) |
| Oklahoma City to Monticello (Minnesota) | 706.64 mi (1,137.23 km) |
| Oklahoma City to Montrose (Colorado) | 607.15 mi (977.12 km) |
| Oklahoma City to Moody (Alabama) | 639.88 mi (1,029.79 km) |
| Oklahoma City to Moore (Oklahoma) | 9.79 mi (15.76 km) |
| Oklahoma City to Moorestown-Lenola (New Jersey) | 1,267.26 mi (2,039.46 km) |
| Oklahoma City to Mooresville (North Carolina) | 937.25 mi (1,508.35 km) |
| Oklahoma City to Moorhead (Minnesota) | 788.64 mi (1,269.20 km) |
| Oklahoma City to Moorpark (California) | 1,211.32 mi (1,949.43 km) |
| Oklahoma City to Moraga (California) | 1,369.89 mi (2,204.62 km) |
| Oklahoma City to Moreno Valley (California) | 1,121.79 mi (1,805.34 km) |
| Oklahoma City to Morgan City (Louisiana) | 541.97 mi (872.21 km) |
| Oklahoma City to Morgan Hill (California) | 1,344.85 mi (2,164.33 km) |
| Oklahoma City to Morganton (North Carolina) | 887.59 mi (1,428.43 km) |
| Oklahoma City to Morgantown (West Virginia) | 1,002.58 mi (1,613.49 km) |
