50. U.S. 27 is the shortest longest highway on this list at 1,373 miles. It spans from Miami, FL to Fort Wayne, Ind., and travels through Chattanooga, Tenn., as pictured here.
49. I-5 is 1,381 miles long from San Ysidro, Calif., to Blaine, Wash., connecting many of the west coast’s most populous cities: San Diego, Los Angeles, Portland (pictured), and Seattle.
48. U.S. 19 is 1,386 miles long from Memphis, Fla., to Erie, Pa. Shown here is a segment in Beckley, W,V.
47. U.S. 14 is 1,398 miles long from Yellowstone National Park, Wy., (pictured) to Chicago, Ill.
46. U.S. 61 AKA the “Blues Highway” is 1,400 miles from New Orleans, La., to Wyoming, Minn.
45. From Uhrichsville, Ohio toward Estes Park, Colo., U.S. 36 stretches for 1,414 miles.
44. I-15 is 1,433 miles long from San Diego, Calif., to Sweetgrass, Mont., and is often considered one of the most dangerous highways in the USA.
43. U.S. 23 reaches from Jacksonville, Fla., to Mackinaw City Mich. In Kentucky (pictured), this route is nicknamed the “Country Music Highway.”
42. U.S.160 is 1,464 miles long from Tuba City, Ariz., toward Poplar Bluff, Mo. Its route takes drivers past the Elephants Feet in Tonalea, Ariz., as pictured here.
41. U.S. 85 is 1,479 miles long from El Paso, Texas (pictured), to Fortuna, N.D.
40. U.S. 26 is 1,485 miles long from Seaside, Ore., to Ogallala, Neb., (pictured).
39. U.S. 101 is 1,519 miles from Los Angeles, Calif., (pictured) to Olympia, Wash., and is considered one of the most iconic highways in the nation.
38. U.S. 71 is 1,532 miles long from Krotz Springs, La., to International Falls, Minn.
37. I-20 traverses the southeastern states from San Martine, Texas, toward Florence, S.C.
36. U.S. 24 is 1,540 miles long connecting Minturn, Colo., to Clarkston, Mich. Scenic routes along U.S. 24 include this view of Vail, Colo.
35. U.S. 67 is 1,560 miles from its southern terminus at Presidio, Texas, to its northern end in Sabula, Iowa.
34. I-35 spans six states from Laredo, Texas to Duluth, Minn., (pictured) traversing 1,569 miles.
33. U.S. 95 is 1,574 miles long from San Luis, Ariz., to Eastport, Idaho, passing through Las Vegas as pictured.
32. I-94 connects the seven states of Michigan, Indiana, Illinois, Wisconsin, Minnesota, North Dakota, and Montana with its 1,585 miles of road.
31. U.S. 90 is 1,633 miles long from Van Horn, Texas, to Jacksonville Beach, Fla. Shown here is a segment along the water in Biloxi, Miss.
30. U.S. 11 is 1,645 miles long from New Orleans, La., to Rouses Point, N.Y. (pictured).
29. U.S. 191 is 1,657 miles from Douglas, Ariz., toward Loring, Mont., and after several years of route changes, it is now longer than its parent highway U.S. 91.
28. Since New Mexico eliminated the overlap of U.S. 82 and U.S. 70 extending to Las Cruces, U.S. 82 is now only 1,625 miles long from Brunswick, Ga., to Alamogordo, N.M.
27. I-75 is 1,786 miles from Miami, Fla., to Michigan’s Canadian border in Sault Ste. Marie.
26. U.S. 281 spans from Brownsville,Texas, to Dunseith, N.D., at a distance of 1,872 miles.
25. From Port Arthur, Texas, to Choteau, Mont., U.S. 287 traverses 1,791 miles.
24. U.S. 83 is 1,894 miles from Brownsville, Texas, to toward Westhope, N.D. Road trip highlights along U.S. 83’s 1,894 miles include the World’s Largest Buffalo Skull, the “Land of Oz” and Fort Pierre National Grassland.
23. U.S. 59 is 1,911 miles from Laredo, Texas, to Lancaster, Minn., and is one of the busiest highways in the nation.
22. U.S. 84 is 1,919 miles long from Pagosa Springs, Colo., toward Midway, Ga.
21. I-95 is the longest north-south highway in the U.S. at 1,925 miles, beginning in Miami and ending in Maine. Pictured here is the road through Pawtucket, R.I.
20. Stretching from Port Lavaca, Texas, toward Havre, Mont., U.S. 87 reaches 1,998 miles.
19. U.S. 41 reaches 2,006 miles from Miami Beach, Fla., toward Copper Harbor, Mich.
18. U.S. 52 is 2,072 miles from Portal, N.D., to Charleston, S.C. Shown here is a segment in Polo, Ill.
17. U.S. 2 is broken up into two sections along our northernmost states covering a total of 2,112 miles.
16. Plan ahead for a road trip from Baltimore, Md., to Cove Fort, Utah, via I-70 (2,153 miles) - there are 106 miles of highway with no services between Green River and Salina, Utah!
15. U.S. 62 is 2,248 miles long from the Mexican border in El Paso, Texas, to the Canadian border at Niagara Falls, N.Y.
14. U.S. 40 traverses 2,285 miles from Park City, Utah, to Atlantic City, N.J.
13. U.S. 64 is 2,326 miles long from Teec Nos Pos, Ariz., to Nags Head, N.C.
12. U.S. 1 is the longest U.S north-south route reaching 2,369 miles from Key West, Fla., to Fort Kent, Maine.
11. U.S. 70 is 2,385 miles long from Globe, Ariz., (pictured) to Atlantic, N.C.
10. U.S. 12 is 2,484 miles long from Aberdeen, Wash., to Detroit (pictured).
9. Tour the length of the south via I-10, which connects eight of our southernmost states over the course of 2,460 miles.
8. Spanning eight states from Barstow, Calif., to Wilmington, N.C., (pictured), I-40 reaches 2,555 miles long.
7. U.S. 60 traverses 2,670 miles from Arizona to Virginia, where you’ll pass this scene in Virginia Beach.
6. At 2,899 miles, I-80 is the second longest interstate highway. Shown here is a view through San Francisco, Calif.
5. From Ocean City, Md., to Sacramento, Calif., (pictured), U.S. 50 would take approximately 58 hours to drive along its 3,017 miles of road.
4. The longest interstate highway, I-90 runs from Boston, Mass., to Seattle, Wash., (pictured), stretching for 3,020 miles.
3. From Atlantic City, N.J., (pictured) to Astoria, Ore., U.S. 30 reaches 3,073 miles.
2. From Provincetown, Mass., to Bishop, Calif., U.S. 6 clocks in at 3,207 miles.
1. U.S. 20 is the longest highway in the USA and the 7th longest highway in the world. It spans 3,365 miles and connects Boston, Mass., (pictured) to Newport, Ore.