The Carry-On Weight Limit United policy does not specify a fixed weight. Instead, United Airlines focuses on size limits and safe handling. Passengers must lift carry-on bags independently and ensure they fit in the overhead bin to avoid gate checking or extra fees.
United Airlines does not publish a specific weight limit for carry-on bags. Instead of focusing on weight, United emphasizes size restrictions and safe handling.
What this means for travelers:
You must be able to lift your carry-on bag into the overhead bin on your own
The bag must fit properly in the overhead compartment
If a bag appears too heavy or unsafe, gate staff may require it to be checked
So while there’s no official number listed for the carry-on weight limit, practicality and safety are the deciding factors.
Size is the most important rule when it comes to carry-on bags.
Maximum carry-on dimensions:
22 x 14 x 9 inches (including wheels and handles)
Any bag larger than these dimensions may need to be checked at the gate, and fees could apply depending on your ticket type.
Personal Item Allowance
In addition to your carry-on bag, United allows one personal item free of charge.
Common personal items include:
Backpack
Purse or handbag
Laptop bag
Briefcase
Your personal item must fit completely under the seat in front of you. Like carry-ons, there is no stated weight limit, but it should be manageable and safe.
If you are traveling on a Basic Economy fare, carry-on rules are more restrictive.
Most Basic Economy passengers are not allowed a full-size carry-on
Only one personal item is permitted
Exceptions apply for MileagePlus elite members, United credit card holders, and certain international routes
Bringing a full-size carry-on without eligibility may result in a gate-check fee.
For most international flights:
One carry-on and one personal item are allowed
The same size rules apply
There is still no official carry-on weight limit
However, international airport staff may be stricter about safety and handling, so packing lighter is always a good idea.
If your carry-on:
Exceeds size limits
Cannot fit in the overhead bin
Is unsafe to lift
United staff may require you to check the bag at the gate. Depending on your fare type, this could include an additional fee.
Even without a published weight limit, smart packing helps prevent issues:
Use lightweight luggage
Pack heavier items near the wheels
Wear bulky clothing instead of packing it
Avoid overstuffing your bag
Test lifting your bag before leaving home
A bag that looks heavy may attract more attention at the gate.
Board early if possible to secure overhead bin space
Keep essential items in your personal item
Measure your bag at home to confirm size compliance
Review your fare type before arriving at the airport
Preparation makes boarding smoother and faster.
While United Airlines does not enforce a specific carry-on weight limit, size compliance and safe handling are essential. Understanding the carry-on rules, knowing your fare restrictions, and packing smart can help you avoid gate checks and extra charges. By following these simple guidelines, you can enjoy a smooth and hassle-free travel experience on your next United Airlines flight.