Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at 3,099.7 miles (4,988.5 km). It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and the Northeast, ending in Boston, Massachusetts.

The I-90 Interstate 90 Highway is a major automotive & trucking transportation corridor and interstate highway that travels generally in a east-west direction across the United States.

The I-90 is the longest one in the interstate highway system network covering 3,020 miles (4,861 km). This coast-to-coast highway connects Boston on the east with Seattle on the west. It crosses the continental divide at Homestake Pass just east of Butte in the state of Montana.

Interstate I-90 runs east to west across the northern part of the state. Travelers can expect to experience a wide range of weather conditions depending on the time of year. In the summer months, temperatures along I-90 in Idaho can range from the mid-80s to the high 90s and are usually accompanied by dry conditions.

I-90 traffic, road conditions, accidents and constructions. Current driving time, average speed and traffic delays in each state.

In the east, I-90 begins right by Boston's Logan Airport, passes through the Continental Divide by Butte, Montana and ends in Seattle, near Safeco and CenturyLink Field. Whether you're taking it all the way or just for a few miles, these are a few of the best I-90 road trip stops.

Feb 1, 2024 · East from I-290 and Buffalo, Interstate 90 follows the New York Thruway mainline by Rochester and to Syracuse, Utica and Schenectady. I-90 loops east from the Thruway mainline through Albany, reconnecting with the toll road on the Berkshire Section linking I-87 with the Massachusetts State line.

Interstate 90 (abbreviated I-90) is the longest interstate highway in the United States at nearly 3,100 miles (5,000 kilometers). It is the northernmost east-to-west, coast-to-coast interstate.

Interstate 90 (abbreviated I-90) is the longest interstate highway in the United States at nearly 3,100 miles (5,000 kilometers). It is the northernmost east-to-west, coast-to-coast interstate.

Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at 3,021 miles (4,862 km). It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and the Northeast, ending in Boston, Massachusetts.