| Midvale to Olympia Heights (Florida) | 2,078.49 mi (3,345.01 km) |
| Midvale to Omaha (Nebraska) | 826.80 mi (1,330.61 km) |
| Midvale to On Top of the World Designated Place (Florida) | 1,845.41 mi (2,969.89 km) |
| Midvale to Onalaska (Wisconsin) | 1,078.76 mi (1,736.10 km) |
| Midvale to Oneida (New York) | 1,858.01 mi (2,990.18 km) |
| Midvale to Oneonta (New York) | 1,893.92 mi (3,047.97 km) |
| Midvale to Ontario (California) | 551.93 mi (888.25 km) |
| Midvale to Ontario (Oregon) | 350.57 mi (564.18 km) |
| Midvale to Opa-locka (Florida) | 2,075.24 mi (3,339.78 km) |
| Midvale to Opelika (Alabama) | 1,562.05 mi (2,513.88 km) |
| Midvale to Opelousas (Louisiana) | 1,308.93 mi (2,106.52 km) |
| Midvale to Orange (California) | 572.30 mi (921.03 km) |
| Midvale to Orange (Texas) | 1,248.56 mi (2,009.36 km) |
| Midvale to Orange City (Florida) | 1,902.29 mi (3,061.44 km) |
| Midvale to Orangeburg (South Carolina) | 1,769.84 mi (2,848.29 km) |
