| Herrin to Oswego (Illinois) | 270.95 mi (436.05 km) |
| Herrin to Oswego (New York) | 763.20 mi (1,228.26 km) |
| Herrin to Otsego (Minnesota) | 567.71 mi (913.64 km) |
| Herrin to Ottawa (Illinois) | 246.02 mi (395.93 km) |
| Herrin to Ottawa (Kansas) | 342.87 mi (551.80 km) |
| Herrin to Ottumwa (Iowa) | 286.74 mi (461.46 km) |
| Herrin to Overland (Missouri) | 95.53 mi (153.74 km) |
| Herrin to Overland Park (Kansas) | 315.57 mi (507.85 km) |
| Herrin to Overlea (Maryland) | 683.88 mi (1,100.60 km) |
| Herrin to Oviedo (Florida) | 776.68 mi (1,249.95 km) |
| Herrin to Owasso (Oklahoma) | 389.19 mi (626.34 km) |
| Herrin to Owatonna (Minnesota) | 486.77 mi (783.38 km) |
| Herrin to Owensboro (Kentucky) | 104.52 mi (168.21 km) |
| Herrin to Owings Mills (Maryland) | 669.63 mi (1,077.67 km) |
| Herrin to Owosso (Michigan) | 440.50 mi (708.91 km) |
