American and United remove gate bag sizers (airtraveler.club)

American Airlines began removing gate sizer cages on October 6, 2025, with United also eliminating them from boarding areas. Delta, JetBlue, and Alaska retain the physical frames, though all five carriers maintain the identical 22 x 14 x 9 inch carry-on limit. The change shifts enforcement from hardware verification to agent judgment without altering contractual size rules or gate-check fees.