| Trenton to Oskaloosa (Iowa) | 936.83 mi (1,507.67 km) |
| Trenton to Oswego (Illinois) | 714.65 mi (1,150.12 km) |
| Trenton to Oswego (New York) | 240.26 mi (386.65 km) |
| Trenton to Otsego (Minnesota) | 1,015.31 mi (1,633.99 km) |
| Trenton to Ottawa (Illinois) | 738.92 mi (1,189.18 km) |
| Trenton to Ottawa (Kansas) | 1,097.57 mi (1,766.37 km) |
| Trenton to Ottumwa (Iowa) | 925.92 mi (1,490.12 km) |
| Trenton to Overland (Missouri) | 837.98 mi (1,348.60 km) |
| Trenton to Overland Park (Kansas) | 1,063.09 mi (1,710.88 km) |
| Trenton to Overlea (Maryland) | 110.41 mi (177.69 km) |
| Trenton to Oviedo (Florida) | 878.29 mi (1,413.47 km) |
| Trenton to Owasso (Oklahoma) | 1,171.86 mi (1,885.93 km) |
| Trenton to Owatonna (Minnesota) | 980.51 mi (1,577.97 km) |
| Trenton to Owensboro (Kentucky) | 684.29 mi (1,101.26 km) |
| Trenton to Owings Mills (Maryland) | 121.33 mi (195.27 km) |
