| Longwood to Olympia Heights (Florida) | 214.87 mi (345.80 km) |
| Longwood to Omaha (Nebraska) | 1,199.18 mi (1,929.89 km) |
| Longwood to On Top of the World Designated Place (Florida) | 63.24 mi (101.77 km) |
| Longwood to Onalaska (Wisconsin) | 1,182.19 mi (1,902.55 km) |
| Longwood to Oneida (New York) | 1,042.34 mi (1,677.48 km) |
| Longwood to Oneonta (New York) | 1,012.97 mi (1,630.22 km) |
| Longwood to Ontario (California) | 2,159.09 mi (3,474.72 km) |
| Longwood to Ontario (Oregon) | 2,223.30 mi (3,578.06 km) |
| Longwood to Opa-locka (Florida) | 204.89 mi (329.74 km) |
| Longwood to Opelika (Alabama) | 363.45 mi (584.92 km) |
| Longwood to Opelousas (Louisiana) | 656.63 mi (1,056.74 km) |
| Longwood to Orange (California) | 2,171.58 mi (3,494.81 km) |
| Longwood to Orange (Texas) | 753.09 mi (1,211.98 km) |
| Longwood to Orange City (Florida) | 16.54 mi (26.62 km) |
| Longwood to Orangeburg (South Carolina) | 332.28 mi (534.75 km) |
