| Halawa to Olympia Heights (Florida) | 4,850.79 mi (7,806.60 km) |
| Halawa to Omaha (Nebraska) | 3,815.23 mi (6,140.01 km) |
| Halawa to On Top of the World Designated Place (Florida) | 4,678.75 mi (7,529.73 km) |
| Halawa to Onalaska (Wisconsin) | 4,062.75 mi (6,538.36 km) |
| Halawa to Oneida (New York) | 4,842.60 mi (7,793.41 km) |
| Halawa to Oneonta (New York) | 4,880.68 mi (7,854.70 km) |
| Halawa to Ontario (California) | 2,597.00 mi (4,179.47 km) |
| Halawa to Ontario (Oregon) | 2,806.39 mi (4,516.46 km) |
| Halawa to Opa-locka (Florida) | 4,852.71 mi (7,809.69 km) |
| Halawa to Opelika (Alabama) | 4,450.44 mi (7,162.29 km) |
| Halawa to Opelousas (Louisiana) | 4,083.73 mi (6,572.13 km) |
| Halawa to Orange (California) | 2,582.28 mi (4,155.77 km) |
| Halawa to Orange (Texas) | 3,988.30 mi (6,418.56 km) |
| Halawa to Orange City (Florida) | 4,740.19 mi (7,628.60 km) |
| Halawa to Orangeburg (South Carolina) | 4,696.05 mi (7,557.55 km) |
