| Park Forest to Lombard (Illinois) | 31.99 mi (51.48 km) |
| Park Forest to Lomita (California) | 1,747.54 mi (2,812.40 km) |
| Park Forest to Lompoc (California) | 1,832.44 mi (2,949.02 km) |
| Park Forest to London (Ohio) | 248.16 mi (399.37 km) |
| Park Forest to Lone Tree (Colorado) | 911.21 mi (1,466.44 km) |
| Park Forest to Long Beach (California) | 1,739.69 mi (2,799.75 km) |
| Park Forest to Long Beach (Mississippi) | 772.78 mi (1,243.68 km) |
| Park Forest to Long Beach (New York) | 732.51 mi (1,178.87 km) |
| Park Forest to Long Branch (New Jersey) | 719.25 mi (1,157.51 km) |
| Park Forest to Longmont (Colorado) | 913.40 mi (1,469.98 km) |
| Park Forest to Longview (Texas) | 731.42 mi (1,177.11 km) |
| Park Forest to Longview (Washington) | 1,772.93 mi (2,853.25 km) |
| Park Forest to Longwood (Florida) | 952.24 mi (1,532.49 km) |
| Park Forest to Lorain (Ohio) | 284.89 mi (458.48 km) |
| Park Forest to Lorton (Virginia) | 585.44 mi (942.18 km) |
