| East Niles to Oakley (California) | 237.65 mi (382.46 km) |
| East Niles to Oakton (Virginia) | 2,285.80 mi (3,678.64 km) |
| East Niles to Oakville (Missouri) | 1,588.01 mi (2,555.65 km) |
| East Niles to Oatfield (Oregon) | 720.17 mi (1,159.00 km) |
| East Niles to Ocala (Florida) | 2,177.44 mi (3,504.26 km) |
| East Niles to Ocean Acres (New Jersey) | 2,438.57 mi (3,924.49 km) |
| East Niles to Ocean City (New Jersey) | 2,425.93 mi (3,904.16 km) |
| East Niles to Ocean Pines (Maryland) | 2,405.71 mi (3,871.61 km) |
| East Niles to Ocean Pointe (Hawaii) | 2,548.23 mi (4,100.98 km) |
| East Niles to Ocean Springs (Mississippi) | 1,774.62 mi (2,855.97 km) |
| East Niles to Oceanside (California) | 174.42 mi (280.71 km) |
| East Niles to Oceanside (New York) | 2,464.91 mi (3,966.90 km) |
| East Niles to Ocoee (Florida) | 2,227.33 mi (3,584.54 km) |
| East Niles to Oconomowoc (Wisconsin) | 1,702.86 mi (2,740.49 km) |
| East Niles to Odenton (Maryland) | 2,316.67 mi (3,728.32 km) |
