No, United Economy Plus does not include priority boarding as a standard feature. While Economy Plus provides you with a seat that has extra legroom and a better position at the front of the cabin, it is technically an "upgrade" to the seat itself, not the boarding process. Unless you have United Premier status or a qualifying United Credit Card, you will likely board in Group 3 (window seats) or Group 4 (middle/aisle seats). However, United frequently offers "Travel Bundles" or the option to purchase "Priority Boarding" as a separate add-on for approximately $15. If you want to ensure you are among the first to board to secure overhead bin space, you must either buy this add-on or hold elite status, as the seat upgrade alone won't move you to the earlier boarding groups.