| Calexico to Oakley (California) | 506.35 mi (814.89 km) |
| Calexico to Oakton (Virginia) | 2,166.83 mi (3,487.17 km) |
| Calexico to Oakville (Missouri) | 1,464.64 mi (2,357.11 km) |
| Calexico to Oatfield (Oregon) | 957.39 mi (1,540.78 km) |
| Calexico to Ocala (Florida) | 1,982.83 mi (3,191.05 km) |
| Calexico to Ocean Acres (New Jersey) | 2,327.47 mi (3,745.70 km) |
| Calexico to Ocean City (New Jersey) | 2,311.10 mi (3,719.36 km) |
| Calexico to Ocean Pines (Maryland) | 2,283.94 mi (3,675.65 km) |
| Calexico to Ocean Pointe (Hawaii) | 2,714.01 mi (4,367.77 km) |
| Calexico to Ocean Springs (Mississippi) | 1,576.34 mi (2,536.87 km) |
| Calexico to Oceanside (California) | 111.58 mi (179.57 km) |
| Calexico to Oceanside (New York) | 2,360.80 mi (3,799.35 km) |
| Calexico to Ocoee (Florida) | 2,030.20 mi (3,267.29 km) |
| Calexico to Oconomowoc (Wisconsin) | 1,628.79 mi (2,621.29 km) |
| Calexico to Odenton (Maryland) | 2,199.34 mi (3,539.50 km) |
