| Lake Zurich to Olympia Heights (Florida) | 1,220.28 mi (1,963.84 km) |
| Lake Zurich to Omaha (Nebraska) | 415.62 mi (668.88 km) |
| Lake Zurich to On Top of the World Designated Place (Florida) | 960.63 mi (1,545.99 km) |
| Lake Zurich to Onalaska (Wisconsin) | 196.21 mi (315.77 km) |
| Lake Zurich to Oneida (New York) | 633.89 mi (1,020.15 km) |
| Lake Zurich to Oneonta (New York) | 664.71 mi (1,069.75 km) |
| Lake Zurich to Ontario (California) | 1,690.58 mi (2,720.73 km) |
| Lake Zurich to Ontario (Oregon) | 1,455.16 mi (2,341.85 km) |
| Lake Zurich to Opa-locka (Florida) | 1,210.55 mi (1,948.20 km) |
| Lake Zurich to Opelika (Alabama) | 675.23 mi (1,086.68 km) |
| Lake Zurich to Opelousas (Louisiana) | 836.15 mi (1,345.65 km) |
| Lake Zurich to Orange (California) | 1,709.18 mi (2,750.66 km) |
| Lake Zurich to Orange (Texas) | 891.63 mi (1,434.94 km) |
| Lake Zurich to Orange City (Florida) | 991.86 mi (1,596.25 km) |
| Lake Zurich to Orangeburg (South Carolina) | 718.21 mi (1,155.85 km) |
