| Wallingford Center to Orangeburg (South Carolina) | 704.31 mi (1,133.48 km) |
| Wallingford Center to Orangevale (California) | 2,532.91 mi (4,076.32 km) |
| Wallingford Center to Orchards (Washington) | 2,465.53 mi (3,967.89 km) |
| Wallingford Center to Orcutt (California) | 2,592.69 mi (4,172.53 km) |
| Wallingford Center to Oregon (Ohio) | 548.61 mi (882.90 km) |
| Wallingford Center to Oregon (Wisconsin) | 853.00 mi (1,372.78 km) |
| Wallingford Center to Oregon City (Oregon) | 2,473.32 mi (3,980.42 km) |
| Wallingford Center to Orem (Utah) | 2,015.67 mi (3,243.91 km) |
| Wallingford Center to Orinda (California) | 2,601.27 mi (4,186.34 km) |
| Wallingford Center to Orland Park (Illinois) | 777.19 mi (1,250.76 km) |
| Wallingford Center to Orlando (Florida) | 1,016.57 mi (1,636.02 km) |
| Wallingford Center to Ormond Beach (Florida) | 959.40 mi (1,544.00 km) |
| Wallingford Center to Oro Valley (Arizona) | 2,178.21 mi (3,505.48 km) |
| Wallingford Center to Oroville (California) | 2,531.31 mi (4,073.75 km) |
| Wallingford Center to Oshkosh (Wisconsin) | 817.10 mi (1,314.99 km) |
