| Cheval to Olympia Heights (Florida) | 214.53 mi (345.25 km) |
| Cheval to Omaha (Nebraska) | 1,185.40 mi (1,907.71 km) |
| Cheval to On Top of the World Designated Place (Florida) | 67.80 mi (109.11 km) |
| Cheval to Onalaska (Wisconsin) | 1,189.48 mi (1,914.29 km) |
| Cheval to Oneida (New York) | 1,100.18 mi (1,770.56 km) |
| Cheval to Oneonta (New York) | 1,073.15 mi (1,727.07 km) |
| Cheval to Ontario (California) | 2,104.99 mi (3,387.65 km) |
| Cheval to Ontario (Oregon) | 2,191.86 mi (3,527.46 km) |
| Cheval to Opa-locka (Florida) | 208.54 mi (335.61 km) |
| Cheval to Opelika (Alabama) | 355.41 mi (571.97 km) |
| Cheval to Opelousas (Louisiana) | 598.79 mi (963.66 km) |
| Cheval to Orange (California) | 2,117.00 mi (3,406.97 km) |
| Cheval to Orange (Texas) | 691.78 mi (1,113.32 km) |
| Cheval to Orange City (Florida) | 92.45 mi (148.79 km) |
| Cheval to Orangeburg (South Carolina) | 382.19 mi (615.07 km) |
