| Duncan to Nowy Dwor Mazowiecki | 5,385.98 mi (8,667.90 km) |
| Duncan to Nowy Sacz | 5,516.59 mi (8,878.09 km) |
| Duncan to Nowy Targ | 5,501.44 mi (8,853.71 km) |
| Duncan to Nowy Tomysl | 5,244.77 mi (8,440.64 km) |
| Duncan to Nysa | 5,366.06 mi (8,635.84 km) |
| Duncan to Oborniki | 5,252.40 mi (8,452.92 km) |
| Duncan to Oborniki Slaskie | 5,314.84 mi (8,553.42 km) |
| Duncan to Olawa | 5,344.31 mi (8,600.83 km) |
| Duncan to Olecko | 5,364.89 mi (8,633.96 km) |
| Duncan to Olesnica | 5,335.17 mi (8,586.13 km) |
| Duncan to Olesno | 5,383.88 mi (8,664.51 km) |
| Duncan to Olkusz | 5,448.79 mi (8,768.99 km) |
| Duncan to Olsztyn | 5,316.35 mi (8,555.84 km) |
| Duncan to Opalenica | 5,254.33 mi (8,456.02 km) |
| Duncan to Opoczno | 5,421.50 mi (8,725.06 km) |
