| Monserrat to Oswego (Illinois) | 4,394.69 mi (7,072.57 km) |
| Monserrat to Oswego (New York) | 3,803.38 mi (6,120.94 km) |
| Monserrat to Otsego (Minnesota) | 4,494.41 mi (7,233.06 km) |
| Monserrat to Ottawa (Illinois) | 4,427.99 mi (7,126.17 km) |
| Monserrat to Ottawa (Kansas) | 4,817.49 mi (7,753.00 km) |
| Monserrat to Ottumwa (Iowa) | 4,599.12 mi (7,401.57 km) |
| Monserrat to Overland (Missouri) | 4,593.88 mi (7,393.14 km) |
| Monserrat to Overland Park (Kansas) | 4,780.64 mi (7,693.69 km) |
| Monserrat to Overlea (Maryland) | 3,923.87 mi (6,314.85 km) |
| Monserrat to Oviedo (Florida) | 4,523.71 mi (7,280.21 km) |
| Monserrat to Owasso (Oklahoma) | 4,935.05 mi (7,942.20 km) |
| Monserrat to Owatonna (Minnesota) | 4,520.86 mi (7,275.63 km) |
| Monserrat to Owensboro (Kentucky) | 4,478.57 mi (7,207.56 km) |
| Monserrat to Owings Mills (Maryland) | 3,935.52 mi (6,333.60 km) |
| Monserrat to Owosso (Michigan) | 4,164.94 mi (6,702.83 km) |
