| Normal to Oakley (California) | 1,748.44 mi (2,813.85 km) |
| Normal to Oakton (Virginia) | 630.89 mi (1,015.33 km) |
| Normal to Oakville (Missouri) | 159.91 mi (257.35 km) |
| Normal to Oatfield (Oregon) | 1,719.22 mi (2,766.82 km) |
| Normal to Ocala (Florida) | 873.69 mi (1,406.07 km) |
| Normal to Ocean Acres (New Jersey) | 777.91 mi (1,251.93 km) |
| Normal to Ocean City (New Jersey) | 766.66 mi (1,233.81 km) |
| Normal to Ocean Pines (Maryland) | 752.12 mi (1,210.42 km) |
| Normal to Ocean Pointe (Hawaii) | 4,193.49 mi (6,748.77 km) |
| Normal to Ocean Springs (Mississippi) | 698.87 mi (1,124.72 km) |
| Normal to Oceanside (California) | 1,636.23 mi (2,633.26 km) |
| Normal to Oceanside (New York) | 804.66 mi (1,294.98 km) |
| Normal to Ocoee (Florida) | 926.90 mi (1,491.71 km) |
| Normal to Oconomowoc (Wisconsin) | 179.92 mi (289.55 km) |
| Normal to Odenton (Maryland) | 659.84 mi (1,061.90 km) |
