| Zierikzee to Oswego (Illinois) | 4,130.48 mi (6,647.36 km) |
| Zierikzee to Oswego (New York) | 3,599.51 mi (5,792.85 km) |
| Zierikzee to Otsego (Minnesota) | 4,146.38 mi (6,672.96 km) |
| Zierikzee to Ottawa (Illinois) | 4,164.40 mi (6,701.96 km) |
| Zierikzee to Ottawa (Kansas) | 4,537.75 mi (7,302.80 km) |
| Zierikzee to Ottumwa (Iowa) | 4,312.52 mi (6,940.34 km) |
| Zierikzee to Overland (Missouri) | 4,352.33 mi (7,004.40 km) |
| Zierikzee to Overland Park (Kansas) | 4,502.14 mi (7,245.49 km) |
| Zierikzee to Overlea (Maryland) | 3,783.00 mi (6,088.14 km) |
| Zierikzee to Oviedo (Florida) | 4,491.26 mi (7,227.98 km) |
| Zierikzee to Owasso (Oklahoma) | 4,677.58 mi (7,527.83 km) |
| Zierikzee to Owatonna (Minnesota) | 4,190.15 mi (6,743.40 km) |
| Zierikzee to Owensboro (Kentucky) | 4,275.35 mi (6,880.50 km) |
| Zierikzee to Owings Mills (Maryland) | 3,791.78 mi (6,102.28 km) |
| Zierikzee to Owosso (Michigan) | 3,913.40 mi (6,298.02 km) |
