| Duncan to Yesilyurt | 6,674.61 mi (10,741.75 km) |
| Duncan to Yesilyurt | 6,515.58 mi (10,485.81 km) |
| Duncan to Yigilca | 6,308.75 mi (10,152.95 km) |
| Duncan to Yildirim | 6,273.35 mi (10,095.98 km) |
| Duncan to Yildizeli | 6,534.99 mi (10,517.05 km) |
| Duncan to Yozgat | 6,480.62 mi (10,429.56 km) |
| Duncan to Yuksekova | 6,895.54 mi (11,097.31 km) |
| Duncan to Yumurtalik | 6,681.09 mi (10,752.17 km) |
| Duncan to Yunak | 6,432.99 mi (10,352.90 km) |
| Duncan to Yuregir | 6,653.47 mi (10,707.73 km) |
| Duncan to Yusufeli | 6,627.47 mi (10,665.88 km) |
| Duncan to Zara | 6,568.99 mi (10,571.77 km) |
| Duncan to Zile | 6,488.34 mi (10,441.97 km) |
| Duncan to Zonguldak | 6,294.13 mi (10,129.43 km) |
| Duncan to Abbots Langley | 4,682.63 mi (7,535.96 km) |
