| Cities | Distance |
|---|---|
| Portsmouth to Naklo | 769.21 mi (1,237.92 km) |
| Portsmouth to Nazarje | 794.16 mi (1,278.08 km) |
| Portsmouth to Nova Gorica | 752.68 mi (1,211.33 km) |
| Portsmouth to Nova Vas | 794.67 mi (1,278.90 km) |
| Portsmouth to Novo Mesto | 820.91 mi (1,321.13 km) |
| Portsmouth to Odranci | 841.38 mi (1,354.07 km) |
| Portsmouth to Oplotnica | 812.66 mi (1,307.85 km) |
| Portsmouth to Ormoz | 841.52 mi (1,354.30 km) |
| Portsmouth to Osilnica | 811.45 mi (1,305.91 km) |
| Portsmouth to Pesnica | 815.03 mi (1,311.66 km) |
| Portsmouth to Piran | 765.61 mi (1,232.14 km) |
| Portsmouth to Pivka | 785.39 mi (1,263.97 km) |
| Portsmouth to Podcetrtek | 826.56 mi (1,330.23 km) |
| Portsmouth to Podlehnik | 832.50 mi (1,339.78 km) |
| Portsmouth to Podvelka | 801.29 mi (1,289.54 km) |