| Elon to Olympia Heights (Florida) | 718.70 mi (1,156.64 km) |
| Elon to Omaha (Nebraska) | 959.00 mi (1,543.36 km) |
| Elon to On Top of the World Designated Place (Florida) | 509.62 mi (820.15 km) |
| Elon to Onalaska (Wisconsin) | 818.86 mi (1,317.83 km) |
| Elon to Oneida (New York) | 523.50 mi (842.49 km) |
| Elon to Oneonta (New York) | 498.96 mi (803.00 km) |
| Elon to Ontario (California) | 2,145.37 mi (3,452.64 km) |
| Elon to Ontario (Oregon) | 2,036.29 mi (3,277.09 km) |
| Elon to Opa-locka (Florida) | 706.26 mi (1,136.62 km) |
| Elon to Opelika (Alabama) | 410.33 mi (660.36 km) |
| Elon to Opelousas (Louisiana) | 820.90 mi (1,321.11 km) |
| Elon to Orange (California) | 2,161.53 mi (3,478.64 km) |
| Elon to Orange (Texas) | 921.15 mi (1,482.44 km) |
| Elon to Orange City (Florida) | 505.88 mi (814.14 km) |
| Elon to Orangeburg (South Carolina) | 196.03 mi (315.48 km) |
