| Gaillard to Orangevale (California) | 5,731.82 mi (9,224.48 km) |
| Gaillard to Orchards (Washington) | 5,365.86 mi (8,635.51 km) |
| Gaillard to Orcutt (California) | 5,926.70 mi (9,538.09 km) |
| Gaillard to Oregon (Ohio) | 4,223.68 mi (6,797.36 km) |
| Gaillard to Oregon (Wisconsin) | 4,406.03 mi (7,090.83 km) |
| Gaillard to Oregon City (Oregon) | 5,387.51 mi (8,670.36 km) |
| Gaillard to Orem (Utah) | 5,342.10 mi (8,597.29 km) |
| Gaillard to Orinda (California) | 5,806.98 mi (9,345.43 km) |
| Gaillard to Orland Park (Illinois) | 4,404.16 mi (7,087.82 km) |
| Gaillard to Orlando (Florida) | 4,717.44 mi (7,591.99 km) |
| Gaillard to Ormond Beach (Florida) | 4,669.04 mi (7,514.10 km) |
| Gaillard to Oro Valley (Arizona) | 5,742.72 mi (9,242.02 km) |
| Gaillard to Oroville (California) | 5,695.25 mi (9,165.61 km) |
| Gaillard to Oshkosh (Wisconsin) | 4,325.85 mi (6,961.78 km) |
| Gaillard to Oskaloosa (Iowa) | 4,605.88 mi (7,412.45 km) |
