| Landerneau to Olympia Heights (Florida) | 4,288.24 mi (6,901.25 km) |
| Landerneau to Omaha (Nebraska) | 4,245.99 mi (6,833.26 km) |
| Landerneau to On Top of the World Designated Place (Florida) | 4,217.67 mi (6,787.68 km) |
| Landerneau to Onalaska (Wisconsin) | 3,940.44 mi (6,341.53 km) |
| Landerneau to Oneida (New York) | 3,335.48 mi (5,367.93 km) |
| Landerneau to Oneonta (New York) | 3,333.31 mi (5,364.44 km) |
| Landerneau to Ontario (California) | 5,417.16 mi (8,718.07 km) |
| Landerneau to Ontario (Oregon) | 4,862.40 mi (7,825.28 km) |
| Landerneau to Opa-locka (Florida) | 4,276.13 mi (6,881.77 km) |
| Landerneau to Opelika (Alabama) | 4,191.14 mi (6,744.98 km) |
| Landerneau to Opelousas (Louisiana) | 4,581.83 mi (7,373.74 km) |
| Landerneau to Orange (California) | 5,437.58 mi (8,750.94 km) |
| Landerneau to Orange (Texas) | 4,673.27 mi (7,520.90 km) |
| Landerneau to Orange City (Florida) | 4,180.82 mi (6,728.38 km) |
| Landerneau to Orangeburg (South Carolina) | 3,955.45 mi (6,365.68 km) |
