| Hershey to Oswego (Illinois) | 616.97 mi (992.92 km) |
| Hershey to Oswego (New York) | 219.22 mi (352.80 km) |
| Hershey to Otsego (Minnesota) | 925.00 mi (1,488.64 km) |
| Hershey to Ottawa (Illinois) | 640.67 mi (1,031.06 km) |
| Hershey to Ottawa (Kansas) | 998.34 mi (1,606.68 km) |
| Hershey to Ottumwa (Iowa) | 827.28 mi (1,331.37 km) |
| Hershey to Overland (Missouri) | 739.12 mi (1,189.50 km) |
| Hershey to Overland Park (Kansas) | 963.82 mi (1,551.12 km) |
| Hershey to Overlea (Maryland) | 63.68 mi (102.49 km) |
| Hershey to Oviedo (Florida) | 843.35 mi (1,357.24 km) |
| Hershey to Owasso (Oklahoma) | 1,074.06 mi (1,728.53 km) |
| Hershey to Owatonna (Minnesota) | 887.19 mi (1,427.79 km) |
| Hershey to Owensboro (Kentucky) | 588.10 mi (946.46 km) |
| Hershey to Owings Mills (Maryland) | 60.54 mi (97.43 km) |
| Hershey to Owosso (Michigan) | 431.50 mi (694.43 km) |
