| South Portland to Leini | 3,693.04 mi (5,943.38 km) |
| South Portland to Lendinara | 3,861.89 mi (6,215.10 km) |
| South Portland to Leno | 3,793.61 mi (6,105.23 km) |
| South Portland to Lentate sul Seveso | 3,736.93 mi (6,014.00 km) |
| South Portland to Lentini | 4,302.59 mi (6,924.35 km) |
| South Portland to Leonforte | 4,261.24 mi (6,857.80 km) |
| South Portland to Lequile | 4,319.50 mi (6,951.57 km) |
| South Portland to Lerici | 3,824.69 mi (6,155.24 km) |
| South Portland to Leverano | 4,318.02 mi (6,949.19 km) |
| South Portland to Licata | 4,262.25 mi (6,859.43 km) |
| South Portland to Limbiate | 3,739.95 mi (6,018.88 km) |
| South Portland to Lipari | 4,253.29 mi (6,845.00 km) |
| South Portland to Lissone | 3,744.40 mi (6,026.03 km) |
| South Portland to Livorno | 3,860.01 mi (6,212.08 km) |
| South Portland to Lizzanello | 4,323.08 mi (6,957.33 km) |
