| Erie to Orangevale (California) | 2,156.92 mi (3,471.23 km) |
| Erie to Orchards (Washington) | 2,103.03 mi (3,384.50 km) |
| Erie to Orcutt (California) | 2,217.06 mi (3,568.02 km) |
| Erie to Oregon (Ohio) | 175.72 mi (282.79 km) |
| Erie to Oregon (Wisconsin) | 477.43 mi (768.35 km) |
| Erie to Oregon City (Oregon) | 2,109.75 mi (3,395.32 km) |
| Erie to Orem (Utah) | 1,639.35 mi (2,638.28 km) |
| Erie to Orinda (California) | 2,225.04 mi (3,580.86 km) |
| Erie to Orland Park (Illinois) | 402.18 mi (647.25 km) |
| Erie to Orlando (Florida) | 945.05 mi (1,520.91 km) |
| Erie to Ormond Beach (Florida) | 887.51 mi (1,428.31 km) |
| Erie to Oro Valley (Arizona) | 1,814.15 mi (2,919.60 km) |
| Erie to Oroville (California) | 2,155.97 mi (3,469.69 km) |
| Erie to Oshkosh (Wisconsin) | 447.99 mi (720.98 km) |
| Erie to Oskaloosa (Iowa) | 650.17 mi (1,046.34 km) |
