| Ware to Olympia Heights (Florida) | 4,437.17 mi (7,140.94 km) |
| Ware to Omaha (Nebraska) | 4,283.17 mi (6,893.10 km) |
| Ware to On Top of the World Designated Place (Florida) | 4,347.89 mi (6,997.25 km) |
| Ware to Onalaska (Wisconsin) | 3,980.20 mi (6,405.52 km) |
| Ware to Oneida (New York) | 3,423.09 mi (5,508.93 km) |
| Ware to Oneonta (New York) | 3,425.92 mi (5,513.48 km) |
| Ware to Ontario (California) | 5,409.96 mi (8,706.48 km) |
| Ware to Ontario (Oregon) | 4,824.80 mi (7,764.76 km) |
| Ware to Opa-locka (Florida) | 4,424.71 mi (7,120.89 km) |
| Ware to Opelika (Alabama) | 4,297.53 mi (6,916.20 km) |
| Ware to Opelousas (Louisiana) | 4,674.62 mi (7,523.07 km) |
| Ware to Orange (California) | 5,430.35 mi (8,739.31 km) |
| Ware to Orange (Texas) | 4,761.96 mi (7,663.63 km) |
| Ware to Orange City (Florida) | 4,314.91 mi (6,944.18 km) |
| Ware to Orangeburg (South Carolina) | 4,072.78 mi (6,554.51 km) |
