Here are the domestic cities United has cut service to since 2020. Most of these are served by a competitor.
- Texarkana, Arkansas
- Flagstaff, Arizona
- Santa Rosa, California
- Stockton, California
- Alamosa, Colorado
- Pueblo, Colorado
- Destin-Fort Walton Beach, Florida
- Tallahassee, Florida
- Twin Falls, Idaho
- Springfield, Illinois
- Evansville, Indiana
- Paducah, Kentucky
- Alexandria, Louisiana
- Monroe, Louisiana
- Kalamazoo, Michigan
- Lansing, Michigan
- Muskegon, Michigan
- Rochester, Minnesota
- Cape Girardeau, Missouri
- Columbia, Missouri
- Fort Leonard Wood, Missouri
- Kearney, Nebraska
- Ogdensburg, New York
- Plattsburgh, New York
- Erie, Pennsylvania
- Pierre, South Dakota
- Watertown, South Dakota
- Abilene, Texas
- College Station, Texas
- Killeen, Texas
- San Angelo, Texas
- Shenandoah, Virginia
- Everett, Washington
- Clarksburg, West Virginia
- Lewisburg, West Virginia
- Eau Claire, Wisconsin
- Wausau, Wisconsin
I removed Hilo, Hawaii as that was actually mainline service.