| Evanston to Oswego (Illinois) | 41.51 mi (66.81 km) |
| Evanston to Oswego (New York) | 575.72 mi (926.54 km) |
| Evanston to Otsego (Minnesota) | 370.28 mi (595.91 km) |
| Evanston to Ottawa (Illinois) | 75.42 mi (121.37 km) |
| Evanston to Ottawa (Kansas) | 464.17 mi (747.01 km) |
| Evanston to Ottumwa (Iowa) | 254.40 mi (409.42 km) |
| Evanston to Overland (Missouri) | 270.87 mi (435.92 km) |
| Evanston to Overland Park (Kansas) | 427.30 mi (687.67 km) |
| Evanston to Overlea (Maryland) | 613.51 mi (987.35 km) |
| Evanston to Oviedo (Florida) | 994.28 mi (1,600.14 km) |
| Evanston to Owasso (Oklahoma) | 589.65 mi (948.96 km) |
| Evanston to Owatonna (Minnesota) | 313.06 mi (503.83 km) |
| Evanston to Owensboro (Kentucky) | 297.91 mi (479.43 km) |
| Evanston to Owings Mills (Maryland) | 598.69 mi (963.51 km) |
| Evanston to Owosso (Michigan) | 190.77 mi (307.02 km) |
