West Yellowstone Chamber of Commerce issued the following announcement on April 22.
Delta Air Lines Connection operated by Skywest Airlines recently announced an extended summer season with round-trip jet service from Salt Lake City to West Yellowstone running daily from May 9 through October 13.
This means two more weeks of convenience in the spring and two more weeks in the fall. Come out early and experience the joy of watching baby animals in Yellowstone and stay longer in the fall to hit the rivers for world class fishing.
Original source can be found here.
Source: West Yellowstone Chamber of Commerce