| Sulphur to Duluth (Minnesota) | 1,145.14 mi (1,842.93 km) |
| Sulphur to Dumas (Texas) | 631.98 mi (1,017.07 km) |
| Sulphur to Dumont (New Jersey) | 1,311.30 mi (2,110.34 km) |
| Sulphur to Duncan (Oklahoma) | 399.53 mi (642.99 km) |
| Sulphur to Duncanville (Texas) | 268.01 mi (431.31 km) |
| Sulphur to Dundalk (Maryland) | 1,140.12 mi (1,834.84 km) |
| Sulphur to Dunedin (Florida) | 655.47 mi (1,054.88 km) |
| Sulphur to Dunkirk (New York) | 1,148.20 mi (1,847.85 km) |
| Sulphur to Dunmore (Pennsylvania) | 1,255.15 mi (2,019.97 km) |
| Sulphur to Dunwoody (Georgia) | 588.02 mi (946.33 km) |
| Sulphur to Durango (Colorado) | 963.96 mi (1,551.35 km) |
| Sulphur to Durant (Oklahoma) | 315.04 mi (507.02 km) |
| Sulphur to Durham (North Carolina) | 924.83 mi (1,488.37 km) |
| Sulphur to Dyer (Indiana) | 844.12 mi (1,358.48 km) |
| Sulphur to Dyersburg (Tennessee) | 463.11 mi (745.30 km) |
