| Rietberg to Oswego (Illinois) | 4,289.67 mi (6,903.56 km) |
| Rietberg to Oswego (New York) | 3,768.46 mi (6,064.76 km) |
| Rietberg to Otsego (Minnesota) | 4,293.21 mi (6,909.25 km) |
| Rietberg to Ottawa (Illinois) | 4,323.53 mi (6,958.06 km) |
| Rietberg to Ottawa (Kansas) | 4,693.09 mi (7,552.80 km) |
| Rietberg to Ottumwa (Iowa) | 4,467.85 mi (7,190.30 km) |
| Rietberg to Overland (Missouri) | 4,513.57 mi (7,263.90 km) |
| Rietberg to Overland Park (Kansas) | 4,657.80 mi (7,496.00 km) |
| Rietberg to Overlea (Maryland) | 3,957.79 mi (6,369.45 km) |
| Rietberg to Oviedo (Florida) | 4,673.25 mi (7,520.87 km) |
| Rietberg to Owasso (Oklahoma) | 4,835.43 mi (7,781.88 km) |
| Rietberg to Owatonna (Minnesota) | 4,339.49 mi (6,983.74 km) |
| Rietberg to Owensboro (Kentucky) | 4,441.61 mi (7,148.08 km) |
| Rietberg to Owings Mills (Maryland) | 3,966.27 mi (6,383.09 km) |
| Rietberg to Owosso (Michigan) | 4,075.22 mi (6,558.43 km) |
