| Sierning to Oswego (Illinois) | 4,652.88 mi (7,488.09 km) |
| Sierning to Oswego (New York) | 4,124.61 mi (6,637.91 km) |
| Sierning to Otsego (Minnesota) | 4,660.60 mi (7,500.51 km) |
| Sierning to Ottawa (Illinois) | 4,686.78 mi (7,542.64 km) |
| Sierning to Ottawa (Kansas) | 5,058.13 mi (8,140.27 km) |
| Sierning to Ottumwa (Iowa) | 4,832.86 mi (7,777.74 km) |
| Sierning to Overland (Missouri) | 4,875.65 mi (7,846.61 km) |
| Sierning to Overland Park (Kansas) | 5,022.70 mi (8,083.26 km) |
| Sierning to Overlea (Maryland) | 4,307.37 mi (6,932.03 km) |
| Sierning to Oviedo (Florida) | 5,010.33 mi (8,063.35 km) |
| Sierning to Owasso (Oklahoma) | 5,199.38 mi (8,367.59 km) |
| Sierning to Owatonna (Minnesota) | 4,706.38 mi (7,574.18 km) |
| Sierning to Owensboro (Kentucky) | 4,800.15 mi (7,725.09 km) |
| Sierning to Owings Mills (Maryland) | 4,316.25 mi (6,946.33 km) |
| Sierning to Owosso (Michigan) | 4,436.90 mi (7,140.50 km) |
