| Merrick to Oswego (Illinois) | 771.28 mi (1,241.26 km) |
| Merrick to Oswego (New York) | 245.50 mi (395.10 km) |
| Merrick to Otsego (Minnesota) | 1,060.34 mi (1,706.45 km) |
| Merrick to Ottawa (Illinois) | 796.80 mi (1,282.33 km) |
| Merrick to Ottawa (Kansas) | 1,161.03 mi (1,868.49 km) |
| Merrick to Ottumwa (Iowa) | 984.59 mi (1,584.54 km) |
| Merrick to Overland (Missouri) | 902.96 mi (1,453.18 km) |
| Merrick to Overland Park (Kansas) | 1,126.19 mi (1,812.44 km) |
| Merrick to Overlea (Maryland) | 180.31 mi (290.18 km) |
| Merrick to Oviedo (Florida) | 934.43 mi (1,503.83 km) |
| Merrick to Owasso (Oklahoma) | 1,238.57 mi (1,993.29 km) |
| Merrick to Owatonna (Minnesota) | 1,029.48 mi (1,656.79 km) |
| Merrick to Owensboro (Kentucky) | 752.35 mi (1,210.79 km) |
| Merrick to Owings Mills (Maryland) | 191.51 mi (308.20 km) |
| Merrick to Owosso (Michigan) | 569.95 mi (917.25 km) |
