| Tortona to Odessa (Texas) | 5,601.80 mi (9,015.23 km) |
| Tortona to Ogden (Utah) | 5,453.25 mi (8,776.15 km) |
| Tortona to Oildale (California) | 6,002.17 mi (9,659.56 km) |
| Tortona to Ojus (Florida) | 4,929.99 mi (7,934.05 km) |
| Tortona to Okemos (Michigan) | 4,375.37 mi (7,041.49 km) |
| Tortona to Oklahoma City (Oklahoma) | 5,231.03 mi (8,418.53 km) |
| Tortona to Okmulgee (Oklahoma) | 5,164.12 mi (8,310.85 km) |
| Tortona to Olathe (Kansas) | 4,959.85 mi (7,982.10 km) |
| Tortona to Old Jamestown (Missouri) | 4,782.19 mi (7,696.19 km) |
| Tortona to Oldsmar (Florida) | 4,949.16 mi (7,964.90 km) |
| Tortona to Olean (New York) | 4,155.60 mi (6,687.79 km) |
| Tortona to Olive Branch (Mississippi) | 4,943.56 mi (7,955.89 km) |
| Tortona to Olivehurst (California) | 5,868.15 mi (9,443.88 km) |
| Tortona to Olney (Maryland) | 4,216.09 mi (6,785.14 km) |
| Tortona to Olympia (Washington) | 5,441.43 mi (8,757.14 km) |
