| Ottawa to Merriam (Kansas) | 349.14 mi (561.89 km) |
| Ottawa to Merrick (New York) | 796.80 mi (1,282.33 km) |
| Ottawa to Merrifield (Virginia) | 635.09 mi (1,022.07 km) |
| Ottawa to Merrillville (Indiana) | 78.48 mi (126.30 km) |
| Ottawa to Merritt Island (Florida) | 1,011.67 mi (1,628.13 km) |
| Ottawa to Mesa (Arizona) | 1,366.35 mi (2,198.93 km) |
| Ottawa to Mesquite (Nevada) | 1,387.95 mi (2,233.69 km) |
| Ottawa to Mesquite (Texas) | 731.27 mi (1,176.86 km) |
| Ottawa to Metairie (Louisiana) | 788.38 mi (1,268.77 km) |
| Ottawa to Methuen Town (Massachusetts) | 908.29 mi (1,461.75 km) |
| Ottawa to Metuchen (New Jersey) | 755.98 mi (1,216.64 km) |
| Ottawa to Mexico (Missouri) | 220.74 mi (355.25 km) |
| Ottawa to Miami (Florida) | 1,183.17 mi (1,904.13 km) |
| Ottawa to Miami (Oklahoma) | 447.31 mi (719.88 km) |
| Ottawa to Miami Beach (Florida) | 1,182.74 mi (1,903.44 km) |
