| Porsgrunn to Leini | 966.14 mi (1,554.86 km) |
| Porsgrunn to Lendinara | 972.64 mi (1,565.31 km) |
| Porsgrunn to Leno | 949.94 mi (1,528.79 km) |
| Porsgrunn to Lentate sul Seveso | 928.74 mi (1,494.67 km) |
| Porsgrunn to Lentini | 1,526.88 mi (2,457.27 km) |
| Porsgrunn to Leonforte | 1,498.33 mi (2,411.32 km) |
| Porsgrunn to Lequile | 1,350.91 mi (2,174.08 km) |
| Porsgrunn to Lerici | 1,039.14 mi (1,672.34 km) |
| Porsgrunn to Leverano | 1,351.44 mi (2,174.94 km) |
| Porsgrunn to Licata | 1,532.33 mi (2,466.05 km) |
| Porsgrunn to Limbiate | 934.34 mi (1,503.68 km) |
| Porsgrunn to Lipari | 1,445.44 mi (2,326.21 km) |
| Porsgrunn to Lissone | 932.88 mi (1,501.32 km) |
| Porsgrunn to Livorno | 1,075.65 mi (1,731.09 km) |
| Porsgrunn to Lizzanello | 1,351.61 mi (2,175.21 km) |
