| Duncan to Emeryville (California) | 1,373.96 mi (2,211.17 km) |
| Duncan to Emmaus (Pennsylvania) | 1,292.21 mi (2,079.62 km) |
| Duncan to Emporia (Kansas) | 283.57 mi (456.37 km) |
| Duncan to Encinitas (California) | 1,113.51 mi (1,792.03 km) |
| Duncan to Endicott (New York) | 1,290.00 mi (2,076.05 km) |
| Duncan to Endwell (New York) | 1,292.46 mi (2,080.02 km) |
| Duncan to Englewood (Colorado) | 525.41 mi (845.57 km) |
| Duncan to Englewood (Florida) | 1,060.24 mi (1,706.29 km) |
| Duncan to Englewood (New Jersey) | 1,375.30 mi (2,213.33 km) |
| Duncan to Englewood (Ohio) | 833.42 mi (1,341.26 km) |
| Duncan to Enid (Oklahoma) | 128.93 mi (207.49 km) |
| Duncan to Ennis (Texas) | 170.10 mi (273.75 km) |
| Duncan to Ensley (Florida) | 678.98 mi (1,092.71 km) |
| Duncan to Enterprise (Alabama) | 734.03 mi (1,181.30 km) |
| Duncan to Enterprise (Nevada) | 980.15 mi (1,577.40 km) |
