| Mariestad to Oswego (Illinois) | 4,206.86 mi (6,770.28 km) |
| Mariestad to Oswego (New York) | 3,741.92 mi (6,022.04 km) |
| Mariestad to Otsego (Minnesota) | 4,157.36 mi (6,690.62 km) |
| Mariestad to Ottawa (Illinois) | 4,239.98 mi (6,823.58 km) |
| Mariestad to Ottawa (Kansas) | 4,587.79 mi (7,383.33 km) |
| Mariestad to Ottumwa (Iowa) | 4,365.24 mi (7,025.17 km) |
| Mariestad to Overland (Missouri) | 4,437.51 mi (7,141.49 km) |
| Mariestad to Overland Park (Kansas) | 4,554.34 mi (7,329.50 km) |
| Mariestad to Overlea (Maryland) | 3,962.08 mi (6,376.35 km) |
| Mariestad to Oviedo (Florida) | 4,717.91 mi (7,592.75 km) |
| Mariestad to Owasso (Oklahoma) | 4,739.70 mi (7,627.80 km) |
| Mariestad to Owatonna (Minnesota) | 4,213.19 mi (6,780.47 km) |
| Mariestad to Owensboro (Kentucky) | 4,391.41 mi (7,067.30 km) |
| Mariestad to Owings Mills (Maryland) | 3,968.52 mi (6,386.72 km) |
| Mariestad to Owosso (Michigan) | 4,007.71 mi (6,449.79 km) |
