| Leiden to Oakley (California) | 5,418.46 mi (8,720.17 km) |
| Leiden to Oakton (Virginia) | 3,846.36 mi (6,190.12 km) |
| Leiden to Oakville (Missouri) | 4,367.18 mi (7,028.29 km) |
| Leiden to Oatfield (Oregon) | 5,000.76 mi (8,047.95 km) |
| Leiden to Ocala (Florida) | 4,518.21 mi (7,271.36 km) |
| Leiden to Ocean Acres (New Jersey) | 3,686.91 mi (5,933.51 km) |
| Leiden to Ocean City (New Jersey) | 3,721.51 mi (5,989.19 km) |
| Leiden to Ocean Pines (Maryland) | 3,784.23 mi (6,090.13 km) |
| Leiden to Ocean Pointe (Hawaii) | 7,251.64 mi (11,670.38 km) |
| Leiden to Ocean Springs (Mississippi) | 4,720.16 mi (7,596.37 km) |
| Leiden to Oceanside (California) | 5,573.03 mi (8,968.92 km) |
| Leiden to Oceanside (New York) | 3,620.88 mi (5,827.25 km) |
| Leiden to Ocoee (Florida) | 4,523.62 mi (7,280.07 km) |
| Leiden to Oconomowoc (Wisconsin) | 4,070.81 mi (6,551.33 km) |
| Leiden to Odenton (Maryland) | 3,814.02 mi (6,138.07 km) |
