| Knic to Oakley (California) | 6,309.02 mi (10,153.39 km) |
| Knic to Oakton (Virginia) | 4,772.20 mi (7,680.11 km) |
| Knic to Oakville (Missouri) | 5,304.63 mi (8,536.98 km) |
| Knic to Oatfield (Oregon) | 5,867.69 mi (9,443.13 km) |
| Knic to Ocala (Florida) | 5,429.00 mi (8,737.14 km) |
| Knic to Ocean Acres (New Jersey) | 4,609.97 mi (7,419.03 km) |
| Knic to Ocean City (New Jersey) | 4,643.88 mi (7,473.61 km) |
| Knic to Ocean Pines (Maryland) | 4,705.24 mi (7,572.35 km) |
| Knic to Ocean Pointe (Hawaii) | 7,929.05 mi (12,760.58 km) |
| Knic to Ocean Springs (Mississippi) | 5,647.68 mi (9,089.06 km) |
| Knic to Oceanside (California) | 6,487.57 mi (10,440.74 km) |
| Knic to Oceanside (New York) | 4,545.17 mi (7,314.75 km) |
| Knic to Ocoee (Florida) | 5,431.00 mi (8,740.35 km) |
| Knic to Oconomowoc (Wisconsin) | 5,008.67 mi (8,060.68 km) |
| Knic to Odenton (Maryland) | 4,739.32 mi (7,627.20 km) |
