| Summit to Lovington (New Mexico) | 1,681.30 mi (2,705.78 km) |
| Summit to Lowell (Indiana) | 681.23 mi (1,096.33 km) |
| Summit to Lowell (Massachusetts) | 205.70 mi (331.04 km) |
| Summit to Lower Burrell (Pennsylvania) | 280.54 mi (451.48 km) |
| Summit to Lowes Island (Virginia) | 195.89 mi (315.25 km) |
| Summit to Lubbock (Texas) | 1,586.71 mi (2,553.56 km) |
| Summit to Lufkin (Texas) | 1,305.37 mi (2,100.78 km) |
| Summit to Luling (Louisiana) | 1,167.52 mi (1,878.94 km) |
| Summit to Lumberton (North Carolina) | 491.23 mi (790.56 km) |
| Summit to Lumberton (Texas) | 1,324.93 mi (2,132.26 km) |
| Summit to Lutz (Florida) | 982.33 mi (1,580.91 km) |
| Summit to Lynbrook (New York) | 36.39 mi (58.57 km) |
| Summit to Lynchburg (Virginia) | 345.60 mi (556.19 km) |
| Summit to Lynden (Washington) | 2,381.70 mi (3,832.98 km) |
| Summit to Lyndhurst (Ohio) | 375.01 mi (603.52 km) |
