| Leiden to Odessa (Texas) | 5,151.62 mi (8,290.73 km) |
| Leiden to Ogden (Utah) | 4,950.17 mi (7,966.52 km) |
| Leiden to Oildale (California) | 5,494.84 mi (8,843.08 km) |
| Leiden to Ojus (Florida) | 4,601.93 mi (7,406.09 km) |
| Leiden to Okemos (Michigan) | 3,940.18 mi (6,341.10 km) |
| Leiden to Oklahoma City (Oklahoma) | 4,784.57 mi (7,700.02 km) |
| Leiden to Okmulgee (Oklahoma) | 4,722.21 mi (7,599.66 km) |
| Leiden to Olathe (Kansas) | 4,509.09 mi (7,256.68 km) |
| Leiden to Old Jamestown (Missouri) | 4,346.19 mi (6,994.51 km) |
| Leiden to Oldsmar (Florida) | 4,597.09 mi (7,398.30 km) |
| Leiden to Olean (New York) | 3,742.84 mi (6,023.52 km) |
| Leiden to Olive Branch (Mississippi) | 4,526.41 mi (7,284.55 km) |
| Leiden to Olivehurst (California) | 5,349.95 mi (8,609.91 km) |
| Leiden to Olney (Maryland) | 3,825.21 mi (6,156.08 km) |
| Leiden to Olympia (Washington) | 4,911.65 mi (7,904.53 km) |
