| Mengen to Oswego (Illinois) | 4,467.62 mi (7,189.94 km) |
| Mengen to Oswego (New York) | 3,928.23 mi (6,321.87 km) |
| Mengen to Otsego (Minnesota) | 4,489.88 mi (7,225.76 km) |
| Mengen to Ottawa (Illinois) | 4,501.57 mi (7,244.57 km) |
| Mengen to Ottawa (Kansas) | 4,877.17 mi (7,849.04 km) |
| Mengen to Ottumwa (Iowa) | 4,652.06 mi (7,486.77 km) |
| Mengen to Overland (Missouri) | 4,687.79 mi (7,544.27 km) |
| Mengen to Overland Park (Kansas) | 4,841.38 mi (7,791.45 km) |
| Mengen to Overlea (Maryland) | 4,103.74 mi (6,604.32 km) |
| Mengen to Oviedo (Florida) | 4,797.02 mi (7,720.06 km) |
| Mengen to Owasso (Oklahoma) | 5,015.33 mi (8,071.40 km) |
| Mengen to Owatonna (Minnesota) | 4,532.69 mi (7,294.65 km) |
| Mengen to Owensboro (Kentucky) | 4,606.34 mi (7,413.18 km) |
| Mengen to Owings Mills (Maryland) | 4,112.99 mi (6,619.21 km) |
| Mengen to Owosso (Michigan) | 4,248.71 mi (6,837.63 km) |
