| Duncan to Eau Claire (Wisconsin) | 787.51 mi (1,267.37 km) |
| Duncan to Echelon (New Jersey) | 1,309.85 mi (2,108.00 km) |
| Duncan to Eden (North Carolina) | 1,029.74 mi (1,657.21 km) |
| Duncan to Eden Prairie (Minnesota) | 750.36 mi (1,207.59 km) |
| Duncan to Edgewater (Florida) | 1,067.88 mi (1,718.59 km) |
| Duncan to Edgewater (New Jersey) | 1,374.40 mi (2,211.88 km) |
| Duncan to Edgewood (Maryland) | 1,236.84 mi (1,990.51 km) |
| Duncan to Edgewood (Washington) | 1,534.94 mi (2,470.25 km) |
| Duncan to Edina (Minnesota) | 754.79 mi (1,214.72 km) |
| Duncan to Edinburg (Texas) | 568.21 mi (914.44 km) |
| Duncan to Edmond (Oklahoma) | 83.02 mi (133.60 km) |
| Duncan to Edmonds (Washington) | 1,555.83 mi (2,503.86 km) |
| Duncan to Edwards (Colorado) | 593.69 mi (955.46 km) |
| Duncan to Edwardsville (Illinois) | 528.48 mi (850.51 km) |
| Duncan to Effingham (Illinois) | 606.70 mi (976.38 km) |
