| Aver-o-Mar to Oswego (Illinois) | 3,954.33 mi (6,363.87 km) |
| Aver-o-Mar to Oswego (New York) | 3,358.58 mi (5,405.12 km) |
| Aver-o-Mar to Otsego (Minnesota) | 4,066.53 mi (6,544.44 km) |
| Aver-o-Mar to Ottawa (Illinois) | 3,987.42 mi (6,417.12 km) |
| Aver-o-Mar to Ottawa (Kansas) | 4,377.46 mi (7,044.84 km) |
| Aver-o-Mar to Ottumwa (Iowa) | 4,160.86 mi (6,696.25 km) |
| Aver-o-Mar to Overland (Missouri) | 4,150.17 mi (6,679.05 km) |
| Aver-o-Mar to Overland Park (Kansas) | 4,340.59 mi (6,985.50 km) |
| Aver-o-Mar to Overlea (Maryland) | 3,473.89 mi (5,590.69 km) |
| Aver-o-Mar to Oviedo (Florida) | 4,072.10 mi (6,553.41 km) |
| Aver-o-Mar to Owasso (Oklahoma) | 4,491.98 mi (7,229.14 km) |
| Aver-o-Mar to Owatonna (Minnesota) | 4,089.76 mi (6,581.83 km) |
| Aver-o-Mar to Owensboro (Kentucky) | 4,031.58 mi (6,488.20 km) |
| Aver-o-Mar to Owings Mills (Maryland) | 3,485.68 mi (5,609.65 km) |
| Aver-o-Mar to Owosso (Michigan) | 3,723.96 mi (5,993.13 km) |
