Overview

• American began phasing out metal carry-on sizers at airport gates nationwide on Oct. 6.
• Gate agents will enforce carry-on rules using judgment with internal guidance to err on the side of the customer when uncertain.
• Carry-on policy remains one bag up to 22 x 14 x 9 inches plus a personal item, and oversized bags must still be checked.
• Bag sizers stay in airport lobbies so travelers can self-check dimensions before reaching the gate.
• American frames the shift as part of broader boarding upgrades introduced earlier this year and aligns with United’s 2020 move to drop gate sizers.