| Ercis to Oswego (Illinois) | 6,088.20 mi (9,798.01 km) |
| Ercis to Oswego (New York) | 5,613.00 mi (9,033.26 km) |
| Ercis to Otsego (Minnesota) | 6,029.74 mi (9,703.93 km) |
| Ercis to Ottawa (Illinois) | 6,121.30 mi (9,851.29 km) |
| Ercis to Ottawa (Kansas) | 6,466.65 mi (10,407.07 km) |
| Ercis to Ottumwa (Iowa) | 6,244.95 mi (10,050.28 km) |
| Ercis to Overland (Missouri) | 6,318.83 mi (10,169.18 km) |
| Ercis to Overland Park (Kansas) | 6,433.59 mi (10,353.86 km) |
| Ercis to Overlea (Maryland) | 5,820.89 mi (9,367.82 km) |
| Ercis to Oviedo (Florida) | 6,553.45 mi (10,546.76 km) |
| Ercis to Owasso (Oklahoma) | 6,619.78 mi (10,653.50 km) |
| Ercis to Owatonna (Minnesota) | 6,088.28 mi (9,798.14 km) |
| Ercis to Owensboro (Kentucky) | 6,270.12 mi (10,090.78 km) |
| Ercis to Owings Mills (Maryland) | 5,828.37 mi (9,379.85 km) |
| Ercis to Owosso (Michigan) | 5,888.28 mi (9,476.27 km) |
