On a United Airlines boarding pass, Group 3 indicates your specific place in the boarding sequence, which as of late 2025 follows the "WILMA" (Window-Middle-Aisle) efficiency model. Specifically, Group 3 is assigned to passengers traveling in Economy Plus or United Economy who are seated in window seats or exit row seats. This group also includes non-revenue travelers and certain credit card holders who do not have higher priority. By boarding window seats first, United aims to reduce the "aisle clog" caused by passengers constantly standing up to let others into their row. Group 3 typically boards through the green lane at the gate after the pre-boarding groups and the elite/premium Groups 1 and 2 have finished. If you are in Group 3, it is recommended to stay seated until your specific number is called to help keep the gate area clear. For those wanting to board earlier, United offers "Priority Boarding" as an add-on, which would move a passenger into Group 2 regardless of their seat location.