Carry-on luggage has been, for years, a practical solution for millions of travelers. It avoids waiting at the baggage carousel, saves on fees. You have everything with you, but that could change in 2025.
American Airlines is about to announce a complete revision of its baggage policy. The reason? To align with new international regulations, especially those already in effect in Europe since September 2024.
What does this mean? Smaller sizes, more control, and less tolerance. If your current suitcase barely made it before, it could soon be left out.
Smaller sizes and stricter rules
Until now, American Airlines allows:
- One personal item: such as a backpack or purse, up to 17.7 x 13.8 x 7.9 in. (45 x 35 x 20 cm).
- One carry-on suitcase: maximum 21.7 x 13.8 x 9.1 in. (55 x 35 x 23 cm), wheels included.

In theory, that sounds fair. But in practice, many airports are already enforcing stricter restrictions. Miami, for example, has become famous for rejecting suitcases that exceed the limit by just one or two centimeters.
The latest rumors suggest that American Airlines will adjust these measurements to make them stricter, especially on international flights. That means many passengers will have to check, and pay for, their luggage.
Checking in: convenience or business?
There are also commercial interests behind the change. Checking bags costs money and that money is a huge source of revenue for airlines. Limiting carry-on luggage not only improves onboard logistics, it also encourages passengers to pay more.
In addition, the overhead compartments in the cabin fill up quickly. That delays boarding and creates conflicts between passengers and staff. The new policies aim to prevent that, although travelers will pay the price.

As if that weren't enough, the TSA now bans more items in the cabin: large batteries, pepper spray, strong alcohol, and sharp objects.
What can you do now?
Although the changes aren't official yet, everything indicates they'll arrive soon. So it's best to prepare in advance:
- Measure your current suitcase. Make sure it fits easily in the airline's sizer.
- Check the new rules on American Airlines's website before each trip.
- Avoid bringing items banned by the TSA or FAA. One mistake could ruin your flight.
- Consider traveling lighter. Less weight, less stress.
Delta, WestJet, and Southwest will also implement similar measures in 2025. It's a trend that's here to stay.