| Efringen-Kirchen to Oswego (Illinois) | 4,415.76 mi (7,106.47 km) |
| Efringen-Kirchen to Oswego (New York) | 3,870.78 mi (6,229.42 km) |
| Efringen-Kirchen to Otsego (Minnesota) | 4,445.24 mi (7,153.92 km) |
| Efringen-Kirchen to Ottawa (Illinois) | 4,449.71 mi (7,161.12 km) |
| Efringen-Kirchen to Ottawa (Kansas) | 4,827.26 mi (7,768.73 km) |
| Efringen-Kirchen to Ottumwa (Iowa) | 4,602.36 mi (7,406.78 km) |
| Efringen-Kirchen to Overland (Missouri) | 4,634.47 mi (7,458.46 km) |
| Efringen-Kirchen to Overland Park (Kansas) | 4,791.31 mi (7,710.87 km) |
| Efringen-Kirchen to Overlea (Maryland) | 4,042.14 mi (6,505.19 km) |
| Efringen-Kirchen to Oviedo (Florida) | 4,729.38 mi (7,611.21 km) |
| Efringen-Kirchen to Owasso (Oklahoma) | 4,963.81 mi (7,988.47 km) |
| Efringen-Kirchen to Owatonna (Minnesota) | 4,486.58 mi (7,220.45 km) |
| Efringen-Kirchen to Owensboro (Kentucky) | 4,549.94 mi (7,322.42 km) |
| Efringen-Kirchen to Owings Mills (Maryland) | 4,051.60 mi (6,520.41 km) |
| Efringen-Kirchen to Owosso (Michigan) | 4,195.45 mi (6,751.93 km) |
