| Portugalete to Hizan | 2,374.17 mi (3,820.86 km) |
| Portugalete to Hopa | 2,245.99 mi (3,614.58 km) |
| Portugalete to Huyuk | 1,838.67 mi (2,959.06 km) |
| Portugalete to Idil | 2,372.26 mi (3,817.78 km) |
| Portugalete to Igdir | 2,409.99 mi (3,878.50 km) |
| Portugalete to Ihsaniye | 1,751.85 mi (2,819.33 km) |
| Portugalete to Ilic | 2,149.62 mi (3,459.49 km) |
| Portugalete to Ilica | 2,263.98 mi (3,643.52 km) |
| Portugalete to Incesu | 2,001.46 mi (3,221.04 km) |
| Portugalete to Incirliova | 1,646.69 mi (2,650.10 km) |
| Portugalete to Inebolu | 1,856.35 mi (2,987.51 km) |
| Portugalete to Inegol | 1,682.16 mi (2,707.17 km) |
| Portugalete to Ipsala | 1,508.00 mi (2,426.89 km) |
| Portugalete to Iskenderun | 2,106.70 mi (3,390.40 km) |
| Portugalete to Islahiye | 2,117.49 mi (3,407.77 km) |
