| Oceanside to Oswego (Illinois) | 1,683.38 mi (2,709.14 km) |
| Oceanside to Oswego (New York) | 2,295.91 mi (3,694.91 km) |
| Oceanside to Otsego (Minnesota) | 1,507.24 mi (2,425.67 km) |
| Oceanside to Ottawa (Illinois) | 1,654.32 mi (2,662.37 km) |
| Oceanside to Ottawa (Kansas) | 1,284.66 mi (2,067.45 km) |
| Oceanside to Ottumwa (Iowa) | 1,466.80 mi (2,360.59 km) |
| Oceanside to Overland (Missouri) | 1,547.17 mi (2,489.93 km) |
| Oceanside to Overland Park (Kansas) | 1,318.74 mi (2,122.31 km) |
| Oceanside to Overlea (Maryland) | 2,290.96 mi (3,686.95 km) |
| Oceanside to Oviedo (Florida) | 2,152.99 mi (3,464.90 km) |
| Oceanside to Owasso (Oklahoma) | 1,234.75 mi (1,987.14 km) |
| Oceanside to Owatonna (Minnesota) | 1,492.21 mi (2,401.47 km) |
| Oceanside to Owensboro (Kentucky) | 1,719.33 mi (2,767.00 km) |
| Oceanside to Owings Mills (Maryland) | 2,276.23 mi (3,663.23 km) |
| Oceanside to Owosso (Michigan) | 1,908.58 mi (3,071.57 km) |
