| Rock Island to Laredo (Texas) | 1,084.95 mi (1,746.06 km) |
| Rock Island to Largo (Florida) | 1,035.63 mi (1,666.69 km) |
| Rock Island to Largo (Maryland) | 746.93 mi (1,202.07 km) |
| Rock Island to Larkspur (California) | 1,705.85 mi (2,745.30 km) |
| Rock Island to Las Cruces (New Mexico) | 1,092.92 mi (1,758.88 km) |
| Rock Island to Las Vegas (Nevada) | 1,371.27 mi (2,206.84 km) |
| Rock Island to Las Vegas (New Mexico) | 887.35 mi (1,428.05 km) |
| Rock Island to Latham (New York) | 865.88 mi (1,393.50 km) |
| Rock Island to Lathrop (California) | 1,645.67 mi (2,648.45 km) |
| Rock Island to Lauderdale Lakes (Florida) | 1,211.44 mi (1,949.62 km) |
| Rock Island to Lauderhill (Florida) | 1,211.29 mi (1,949.39 km) |
| Rock Island to Laurel (Florida) | 1,091.45 mi (1,756.52 km) |
| Rock Island to Laurel (Maryland) | 740.71 mi (1,192.06 km) |
| Rock Island to Laurel (Mississippi) | 680.00 mi (1,094.36 km) |
| Rock Island to Laurel (Virginia) | 744.31 mi (1,197.84 km) |
