| Laives to Olympia Heights (Florida) | 5,027.54 mi (8,091.05 km) |
| Laives to Omaha (Nebraska) | 4,916.65 mi (7,912.58 km) |
| Laives to On Top of the World Designated Place (Florida) | 4,952.52 mi (7,970.31 km) |
| Laives to Onalaska (Wisconsin) | 4,613.71 mi (7,425.05 km) |
| Laives to Oneida (New York) | 4,048.17 mi (6,514.90 km) |
| Laives to Oneonta (New York) | 4,049.23 mi (6,516.60 km) |
| Laives to Ontario (California) | 6,034.27 mi (9,711.22 km) |
| Laives to Ontario (Oregon) | 5,436.56 mi (8,749.31 km) |
| Laives to Opa-locka (Florida) | 5,015.38 mi (8,071.48 km) |
| Laives to Opelika (Alabama) | 4,915.80 mi (7,911.22 km) |
| Laives to Opelousas (Louisiana) | 5,298.91 mi (8,527.78 km) |
| Laives to Orange (California) | 6,054.63 mi (9,743.98 km) |
| Laives to Orange (Texas) | 5,387.76 mi (8,670.76 km) |
| Laives to Orange City (Florida) | 4,916.83 mi (7,912.88 km) |
| Laives to Orangeburg (South Carolina) | 4,685.19 mi (7,540.08 km) |
