| Santa Monica to Oakleaf Plantation (Florida) | 2,150.12 mi (3,460.28 km) |
| Santa Monica to Oakley (California) | 327.80 mi (527.55 km) |
| Santa Monica to Oakton (Virginia) | 2,293.43 mi (3,690.93 km) |
| Santa Monica to Oakville (Missouri) | 1,592.41 mi (2,562.74 km) |
| Santa Monica to Oatfield (Oregon) | 816.40 mi (1,313.87 km) |
| Santa Monica to Ocala (Florida) | 2,152.65 mi (3,464.36 km) |
| Santa Monica to Ocean Acres (New Jersey) | 2,449.45 mi (3,942.01 km) |
| Santa Monica to Ocean City (New Jersey) | 2,435.37 mi (3,919.35 km) |
| Santa Monica to Ocean Pines (Maryland) | 2,412.43 mi (3,882.44 km) |
| Santa Monica to Ocean Pointe (Hawaii) | 2,555.66 mi (4,112.93 km) |
| Santa Monica to Ocean Springs (Mississippi) | 1,747.53 mi (2,812.38 km) |
| Santa Monica to Oceanside (California) | 87.17 mi (140.28 km) |
| Santa Monica to Oceanside (New York) | 2,478.47 mi (3,988.72 km) |
| Santa Monica to Ocoee (Florida) | 2,201.38 mi (3,542.78 km) |
| Santa Monica to Oconomowoc (Wisconsin) | 1,725.76 mi (2,777.35 km) |
