In 2018, the club was established as Nong Han and competed in Thailand Amateur League Northeastern region, used Nongbua Lamphu Provincial Stadium as ground. In the 2018 season, the club used the players from the Pitchaya Bundit college to compete in the amateur league.[3] They competed in the amateur league to the 2018 and 2019 seasons continuously.
In 2022, Udon United competed in the Thai League 3 for the 2022–23 season. It is their 3rd season in the professional league. The club started the season with a 0–1 away defeat to Surin City[12] and they ended the season with a 1–1 home draw with Surin City.[13] The club has finished 9th place in the league of the Northeastern region. In addition, in the 2022–23 Thai FA Cup Udon United was defeated 1–4 by Nongbua Pitchaya in the second round, causing them to be eliminated[14] and in the 2022–23 Thai League Cup Udon United was defeated 2–3 by MH Nakhon Si City in the qualification play-off round, causing them to be eliminated too.[15]