| Skokie to Oskaloosa (Iowa) | 258.07 mi (415.32 km) |
| Skokie to Oswego (Illinois) | 39.22 mi (63.11 km) |
| Skokie to Oswego (New York) | 578.17 mi (930.48 km) |
| Skokie to Otsego (Minnesota) | 368.92 mi (593.71 km) |
| Skokie to Ottawa (Illinois) | 73.15 mi (117.72 km) |
| Skokie to Ottawa (Kansas) | 461.76 mi (743.14 km) |
| Skokie to Ottumwa (Iowa) | 251.95 mi (405.47 km) |
| Skokie to Overland (Missouri) | 269.02 mi (432.94 km) |
| Skokie to Overland Park (Kansas) | 424.89 mi (683.80 km) |
| Skokie to Overlea (Maryland) | 615.61 mi (990.74 km) |
| Skokie to Oviedo (Florida) | 994.56 mi (1,600.59 km) |
| Skokie to Owasso (Oklahoma) | 587.39 mi (945.32 km) |
| Skokie to Owatonna (Minnesota) | 311.36 mi (501.08 km) |
| Skokie to Owensboro (Kentucky) | 297.45 mi (478.70 km) |
| Skokie to Owings Mills (Maryland) | 600.80 mi (966.89 km) |
