| Summerlin South to McHenry (Illinois) | 1,502.22 mi (2,417.59 km) |
| Summerlin South to McKeesport (Pennsylvania) | 1,934.82 mi (3,113.79 km) |
| Summerlin South to McKinleyville (California) | 578.25 mi (930.60 km) |
| Summerlin South to McKinney (Texas) | 1,078.03 mi (1,734.92 km) |
| Summerlin South to McLean (Virginia) | 2,083.45 mi (3,352.99 km) |
| Summerlin South to McMinnville (Oregon) | 750.05 mi (1,207.09 km) |
| Summerlin South to McMinnville (Tennessee) | 1,647.68 mi (2,651.69 km) |
| Summerlin South to McNair (Virginia) | 2,071.79 mi (3,334.23 km) |
| Summerlin South to McPherson (Kansas) | 982.71 mi (1,581.52 km) |
| Summerlin South to Mead Valley (California) | 193.06 mi (310.70 km) |
| Summerlin South to Meadow Woods (Florida) | 2,045.55 mi (3,291.99 km) |
| Summerlin South to Meadowbrook (Virginia) | 2,082.96 mi (3,352.19 km) |
| Summerlin South to Meadville (Pennsylvania) | 1,916.58 mi (3,084.44 km) |
| Summerlin South to Mebane (North Carolina) | 2,001.11 mi (3,220.47 km) |
| Summerlin South to Mechanicsville (Virginia) | 2,087.19 mi (3,359.01 km) |
