| Dunkirk to Oswego (Illinois) | 464.81 mi (748.04 km) |
| Dunkirk to Oswego (New York) | 158.12 mi (254.47 km) |
| Dunkirk to Otsego (Minnesota) | 736.10 mi (1,184.64 km) |
| Dunkirk to Ottawa (Illinois) | 493.97 mi (794.97 km) |
| Dunkirk to Ottawa (Kansas) | 876.85 mi (1,411.16 km) |
| Dunkirk to Ottumwa (Iowa) | 681.37 mi (1,096.55 km) |
| Dunkirk to Overland (Missouri) | 634.70 mi (1,021.45 km) |
| Dunkirk to Overland Park (Kansas) | 840.55 mi (1,352.73 km) |
| Dunkirk to Overlea (Maryland) | 260.63 mi (419.44 km) |
| Dunkirk to Oviedo (Florida) | 960.62 mi (1,545.96 km) |
| Dunkirk to Owasso (Oklahoma) | 977.19 mi (1,572.64 km) |
| Dunkirk to Owatonna (Minnesota) | 706.98 mi (1,137.78 km) |
| Dunkirk to Owensboro (Kentucky) | 524.64 mi (844.33 km) |
| Dunkirk to Owings Mills (Maryland) | 250.05 mi (402.41 km) |
| Dunkirk to Owosso (Michigan) | 248.33 mi (399.64 km) |
