| Valley to Odenton (Maryland) | 641.58 mi (1,032.52 km) |
| Valley to Odessa (Texas) | 1,002.86 mi (1,613.95 km) |
| Valley to Ogden (Utah) | 1,580.17 mi (2,543.04 km) |
| Valley to Oildale (California) | 1,935.24 mi (3,114.46 km) |
| Valley to Ojus (Florida) | 561.51 mi (903.67 km) |
| Valley to Okemos (Michigan) | 685.08 mi (1,102.54 km) |
| Valley to Oklahoma City (Oklahoma) | 728.24 mi (1,171.99 km) |
| Valley to Okmulgee (Oklahoma) | 647.79 mi (1,042.52 km) |
| Valley to Olathe (Kansas) | 683.12 mi (1,099.37 km) |
| Valley to Old Jamestown (Missouri) | 505.13 mi (812.93 km) |
| Valley to Oldsmar (Florida) | 361.16 mi (581.23 km) |
| Valley to Olean (New York) | 739.38 mi (1,189.92 km) |
| Valley to Olive Branch (Mississippi) | 306.11 mi (492.64 km) |
| Valley to Olivehurst (California) | 2,065.98 mi (3,324.87 km) |
| Valley to Olney (Maryland) | 629.83 mi (1,013.62 km) |
