| Oak Harbor to Orangevale (California) | 667.60 mi (1,074.40 km) |
| Oak Harbor to Orchards (Washington) | 180.22 mi (290.03 km) |
| Oak Harbor to Orcutt (California) | 934.64 mi (1,504.16 km) |
| Oak Harbor to Oregon (Ohio) | 1,947.58 mi (3,134.33 km) |
| Oak Harbor to Oregon (Wisconsin) | 1,635.32 mi (2,631.80 km) |
| Oak Harbor to Oregon City (Oregon) | 204.15 mi (328.55 km) |
| Oak Harbor to Orem (Utah) | 771.68 mi (1,241.90 km) |
| Oak Harbor to Orinda (California) | 720.01 mi (1,158.74 km) |
| Oak Harbor to Orland Park (Illinois) | 1,745.41 mi (2,808.97 km) |
| Oak Harbor to Orlando (Florida) | 2,578.08 mi (4,149.01 km) |
| Oak Harbor to Ormond Beach (Florida) | 2,549.66 mi (4,103.29 km) |
| Oak Harbor to Oro Valley (Arizona) | 1,253.64 mi (2,017.54 km) |
| Oak Harbor to Oroville (California) | 610.09 mi (981.85 km) |
| Oak Harbor to Oshkosh (Wisconsin) | 1,643.03 mi (2,644.20 km) |
| Oak Harbor to Oskaloosa (Iowa) | 1,536.71 mi (2,473.09 km) |
