| Monserrato to Orangevale (California) | 6,202.71 mi (9,982.30 km) |
| Monserrato to Orchards (Washington) | 5,849.64 mi (9,414.08 km) |
| Monserrato to Orcutt (California) | 6,388.82 mi (10,281.81 km) |
| Monserrato to Oregon (Ohio) | 4,613.31 mi (7,424.40 km) |
| Monserrato to Oregon (Wisconsin) | 4,816.79 mi (7,751.87 km) |
| Monserrato to Oregon City (Oregon) | 5,870.91 mi (9,448.32 km) |
| Monserrato to Orem (Utah) | 5,796.58 mi (9,328.70 km) |
| Monserrato to Orinda (California) | 6,278.35 mi (10,104.03 km) |
| Monserrato to Orland Park (Illinois) | 4,805.20 mi (7,733.22 km) |
| Monserrato to Orlando (Florida) | 5,029.22 mi (8,093.74 km) |
| Monserrato to Ormond Beach (Florida) | 4,984.54 mi (8,021.84 km) |
| Monserrato to Oro Valley (Arizona) | 6,174.38 mi (9,936.71 km) |
| Monserrato to Oroville (California) | 6,168.17 mi (9,926.71 km) |
| Monserrato to Oshkosh (Wisconsin) | 4,739.40 mi (7,627.33 km) |
| Monserrato to Oskaloosa (Iowa) | 5,017.87 mi (8,075.48 km) |
