| Suffolk to Orangeburg (South Carolina) | 325.62 mi (524.03 km) |
| Suffolk to Orangevale (California) | 2,417.21 mi (3,890.12 km) |
| Suffolk to Orchards (Washington) | 2,430.02 mi (3,910.73 km) |
| Suffolk to Orcutt (California) | 2,435.91 mi (3,920.22 km) |
| Suffolk to Oregon (Ohio) | 499.36 mi (803.65 km) |
| Suffolk to Oregon (Wisconsin) | 800.63 mi (1,288.49 km) |
| Suffolk to Oregon City (Oregon) | 2,433.87 mi (3,916.94 km) |
| Suffolk to Orem (Utah) | 1,899.63 mi (3,057.15 km) |
| Suffolk to Orinda (California) | 2,479.44 mi (3,990.28 km) |
| Suffolk to Orland Park (Illinois) | 689.65 mi (1,109.88 km) |
| Suffolk to Orlando (Florida) | 629.99 mi (1,013.87 km) |
| Suffolk to Ormond Beach (Florida) | 572.55 mi (921.43 km) |
| Suffolk to Oro Valley (Arizona) | 1,965.42 mi (3,163.03 km) |
| Suffolk to Oroville (California) | 2,425.04 mi (3,902.72 km) |
| Suffolk to Oshkosh (Wisconsin) | 804.99 mi (1,295.51 km) |
