| Morristown to Oswego (Illinois) | 465.19 mi (748.65 km) |
| Morristown to Oswego (New York) | 616.70 mi (992.48 km) |
| Morristown to Otsego (Minnesota) | 825.60 mi (1,328.68 km) |
| Morristown to Ottawa (Illinois) | 463.75 mi (746.33 km) |
| Morristown to Ottawa (Kansas) | 676.62 mi (1,088.92 km) |
| Morristown to Ottumwa (Iowa) | 593.66 mi (955.40 km) |
| Morristown to Overland (Missouri) | 424.09 mi (682.51 km) |
| Morristown to Overland Park (Kansas) | 650.23 mi (1,046.45 km) |
| Morristown to Overlea (Maryland) | 429.75 mi (691.61 km) |
| Morristown to Oviedo (Florida) | 535.71 mi (862.15 km) |
| Morristown to Owasso (Oklahoma) | 697.80 mi (1,123.00 km) |
| Morristown to Owatonna (Minnesota) | 755.25 mi (1,215.46 km) |
| Morristown to Owensboro (Kentucky) | 236.41 mi (380.47 km) |
| Morristown to Owings Mills (Maryland) | 418.57 mi (673.63 km) |
| Morristown to Owosso (Michigan) | 471.53 mi (758.85 km) |
