| Montignoso to Odessa (Texas) | 5,689.57 mi (9,156.48 km) |
| Montignoso to Ogden (Utah) | 5,541.06 mi (8,917.47 km) |
| Montignoso to Oildale (California) | 6,089.79 mi (9,800.57 km) |
| Montignoso to Ojus (Florida) | 5,010.37 mi (8,063.41 km) |
| Montignoso to Okemos (Michigan) | 4,462.78 mi (7,182.15 km) |
| Montignoso to Oklahoma City (Oklahoma) | 5,318.72 mi (8,559.65 km) |
| Montignoso to Okmulgee (Oklahoma) | 5,251.66 mi (8,451.73 km) |
| Montignoso to Olathe (Kansas) | 5,047.69 mi (8,123.48 km) |
| Montignoso to Old Jamestown (Missouri) | 4,869.56 mi (7,836.80 km) |
| Montignoso to Oldsmar (Florida) | 5,031.45 mi (8,097.34 km) |
| Montignoso to Olean (New York) | 4,242.08 mi (6,826.97 km) |
| Montignoso to Olive Branch (Mississippi) | 5,030.06 mi (8,095.09 km) |
| Montignoso to Olivehurst (California) | 5,954.90 mi (9,583.48 km) |
| Montignoso to Olney (Maryland) | 4,301.36 mi (6,922.37 km) |
| Montignoso to Olympia (Washington) | 5,526.36 mi (8,893.82 km) |
