| Portsmouth to Radviliskis | 1,067.43 mi (1,717.87 km) |
| Portsmouth to Raseiniai | 1,046.52 mi (1,684.21 km) |
| Portsmouth to Rietavas | 1,004.48 mi (1,616.55 km) |
| Portsmouth to Rokiskis | 1,147.06 mi (1,846.01 km) |
| Portsmouth to Sakiai | 1,040.54 mi (1,674.59 km) |
| Portsmouth to Salcininkai | 1,130.82 mi (1,819.88 km) |
| Portsmouth to Siauliai | 1,059.92 mi (1,705.78 km) |
| Portsmouth to Silale | 1,011.44 mi (1,627.75 km) |
| Portsmouth to Silute | 982.88 mi (1,581.79 km) |
| Portsmouth to Sirvintos | 1,116.85 mi (1,797.39 km) |
| Portsmouth to Skuodas | 996.83 mi (1,604.24 km) |
| Portsmouth to Svencionys | 1,164.11 mi (1,873.45 km) |
| Portsmouth to Taurage | 1,013.23 mi (1,630.64 km) |
| Portsmouth to Telsiai | 1,019.89 mi (1,641.35 km) |
| Portsmouth to Trakai | 1,113.63 mi (1,792.21 km) |
