| San Gwann to Orangevale (California) | 6,558.68 mi (10,555.18 km) |
| San Gwann to Orchards (Washington) | 6,195.34 mi (9,970.43 km) |
| San Gwann to Orcutt (California) | 6,749.56 mi (10,862.36 km) |
| San Gwann to Oregon (Ohio) | 4,985.17 mi (8,022.85 km) |
| San Gwann to Oregon (Wisconsin) | 5,188.28 mi (8,349.73 km) |
| San Gwann to Oregon City (Oregon) | 6,216.99 mi (10,005.29 km) |
| San Gwann to Orem (Utah) | 6,160.27 mi (9,913.99 km) |
| San Gwann to Orinda (California) | 6,634.04 mi (10,676.46 km) |
| San Gwann to Orland Park (Illinois) | 5,177.06 mi (8,331.68 km) |
| San Gwann to Orlando (Florida) | 5,390.89 mi (8,675.81 km) |
| San Gwann to Ormond Beach (Florida) | 5,347.06 mi (8,605.26 km) |
| San Gwann to Oro Valley (Arizona) | 6,543.97 mi (10,531.50 km) |
| San Gwann to Oroville (California) | 6,522.83 mi (10,497.48 km) |
| San Gwann to Oshkosh (Wisconsin) | 5,110.69 mi (8,224.86 km) |
| San Gwann to Oskaloosa (Iowa) | 5,389.32 mi (8,673.27 km) |
