How many Boarding groups does United have?

United Airlines has 7 boarding groups further these groups are divided into segments,1 to 6 numbered groups and one is a pre-boarding group. Airlines provide these facilities to make passenger boarding easier and more comfortable for them. However, members who came under the pre-boarding category can board ahead of the assigned group. For more in-depth information on how many boarding groups does United have and how its boarding procedure works follow the above-mentioned link to the blog.