| Monserrat to Orangevale (California) | 5,865.54 mi (9,439.68 km) |
| Monserrat to Orchards (Washington) | 5,549.62 mi (8,931.25 km) |
| Monserrat to Orcutt (California) | 6,031.89 mi (9,707.39 km) |
| Monserrat to Oregon (Ohio) | 4,174.86 mi (6,718.78 km) |
| Monserrat to Oregon (Wisconsin) | 4,397.66 mi (7,077.34 km) |
| Monserrat to Oregon City (Oregon) | 5,569.52 mi (8,963.28 km) |
| Monserrat to Orem (Utah) | 5,429.79 mi (8,738.41 km) |
| Monserrat to Orinda (California) | 5,941.75 mi (9,562.33 km) |
| Monserrat to Orland Park (Illinois) | 4,376.15 mi (7,042.73 km) |
| Monserrat to Orlando (Florida) | 4,538.14 mi (7,303.44 km) |
| Monserrat to Ormond Beach (Florida) | 4,495.33 mi (7,234.53 km) |
| Monserrat to Oro Valley (Arizona) | 5,771.03 mi (9,287.58 km) |
| Monserrat to Oroville (California) | 5,836.01 mi (9,392.15 km) |
| Monserrat to Oshkosh (Wisconsin) | 4,323.87 mi (6,958.60 km) |
| Monserrat to Oskaloosa (Iowa) | 4,598.68 mi (7,400.87 km) |
