| Entroncamento to Orangevale (California) | 5,565.22 mi (8,956.35 km) |
| Entroncamento to Orchards (Washington) | 5,279.59 mi (8,496.68 km) |
| Entroncamento to Orcutt (California) | 5,715.97 mi (9,198.97 km) |
| Entroncamento to Oregon (Ohio) | 3,807.36 mi (6,127.35 km) |
| Entroncamento to Oregon (Wisconsin) | 4,043.90 mi (6,508.03 km) |
| Entroncamento to Oregon City (Oregon) | 5,298.29 mi (8,526.77 km) |
| Entroncamento to Orem (Utah) | 5,110.08 mi (8,223.88 km) |
| Entroncamento to Orinda (California) | 5,641.35 mi (9,078.87 km) |
| Entroncamento to Orland Park (Illinois) | 4,014.94 mi (6,461.42 km) |
| Entroncamento to Orlando (Florida) | 4,132.08 mi (6,649.94 km) |
| Entroncamento to Ormond Beach (Florida) | 4,090.52 mi (6,583.06 km) |
| Entroncamento to Oro Valley (Arizona) | 5,422.78 mi (8,727.11 km) |
| Entroncamento to Oroville (California) | 5,539.61 mi (8,915.14 km) |
| Entroncamento to Oshkosh (Wisconsin) | 3,973.26 mi (6,394.35 km) |
| Entroncamento to Oskaloosa (Iowa) | 4,243.93 mi (6,829.95 km) |
