| Hartford to Ilawa | 4,059.40 mi (6,532.97 km) |
| Hartford to Imielin | 4,166.60 mi (6,705.50 km) |
| Hartford to Inowroclaw | 4,039.27 mi (6,500.57 km) |
| Hartford to Janow Lubelski | 4,265.30 mi (6,864.33 km) |
| Hartford to Jarocin | 4,038.80 mi (6,499.83 km) |
| Hartford to Jaroslaw | 4,301.12 mi (6,921.99 km) |
| Hartford to Jasien | 3,998.83 mi (6,435.49 km) |
| Hartford to Jaslo | 4,265.93 mi (6,865.36 km) |
| Hartford to Jastrzebie-Zdroj | 4,148.92 mi (6,677.05 km) |
| Hartford to Jawor | 4,020.31 mi (6,470.07 km) |
| Hartford to Jaworzno | 4,166.11 mi (6,704.70 km) |
| Hartford to Jedrzejow | 4,189.64 mi (6,742.58 km) |
| Hartford to Jelcz-Laskowice | 4,063.94 mi (6,540.27 km) |
| Hartford to Jelenia Gora | 4,007.36 mi (6,449.23 km) |
| Hartford to Jozefoslaw | 4,164.76 mi (6,702.54 km) |
