| Oak Harbor to Oakley (California) | 713.46 mi (1,148.20 km) |
| Oak Harbor to Oakton (Virginia) | 2,322.72 mi (3,738.06 km) |
| Oak Harbor to Oakville (Missouri) | 1,743.49 mi (2,805.87 km) |
| Oak Harbor to Oatfield (Oregon) | 199.27 mi (320.69 km) |
| Oak Harbor to Ocala (Florida) | 2,509.01 mi (4,037.86 km) |
| Oak Harbor to Ocean Acres (New Jersey) | 2,431.18 mi (3,912.61 km) |
| Oak Harbor to Ocean City (New Jersey) | 2,433.17 mi (3,915.81 km) |
| Oak Harbor to Ocean Pines (Maryland) | 2,439.90 mi (3,926.64 km) |
| Oak Harbor to Ocean Pointe (Hawaii) | 2,698.08 mi (4,342.14 km) |
| Oak Harbor to Ocean Springs (Mississippi) | 2,162.92 mi (3,480.88 km) |
| Oak Harbor to Oceanside (California) | 1,077.31 mi (1,733.77 km) |
| Oak Harbor to Oceanside (New York) | 2,430.05 mi (3,910.79 km) |
| Oak Harbor to Ocoee (Florida) | 2,564.58 mi (4,127.29 km) |
| Oak Harbor to Oconomowoc (Wisconsin) | 1,671.44 mi (2,689.92 km) |
| Oak Harbor to Odenton (Maryland) | 2,344.31 mi (3,772.80 km) |
