If you’re planning to travel with just a carry-on, you’ll need to be up to speed with airline carry-on policies. Specifically, the various rules and regulations each carrier has for what you can and can’t “carry on” to the plane. Each airline has different carry-on rules, so don’t just assume what works for one will work for all airlines.
LOT carry-on rules at a glance
If you only read one section, make it this one.
- Carry-on size: 55 x 40 x 23 cm
- Carry-on weight: 8 kg
- Personal item: allowed; LOT references 2 kg and (on long-haul guidance) 40 x 35 x 12 cm for common personal-item types
- Liquids: standard 100 ml containers in a 1-litre clear bag

The personal item should fit under the seat in front of you, and the carry-on bag must be stowed in the overhead bin.
LOT Airlines Carry-On Baggage Size Limit
LOT size requirements for a carry-on are:
- Dimensions for carry-on baggage: max. 50 x 40 x 23 cm (21.6 x 15.7 x 9 inches)
If you aren’t sure what size your carry-on is, LOT typically provides “size check templates” located at their ticketing counters and some departure gates. But if you wait until you get to either of these locations and have an issue, it’s too late.
If the bag is too big or too heavy, you’re going to have to pay a fee, so it’s always better to know your bag size and the limitations in advance.
Recommended Carry-On Bag for LOT
When an airline publishes a classic 55 x 40 x 23 cm carry-on limit with an 8 kg cap, the cleanest approach is using an international-sized spinner that’s compact, light, and easy to keep within a sizer.
That’s why I recommend the Travelpro Maxlite 5 International Expandable Carry-On Spinner (19″) for LOT.
- It’s built around international overhead-bin sizing, with an overall size of 21.75″ x 15.75″ x 7.75″ (wheels/handles included).
- It’s also light for a wheeled bag, which helps you stay under LOT’s 8 kg cabin weight limit without playing the “what do I have to take out at the gate?” game.
As with most soft-sided carry-ons: keep it unexpanded when you want the best odds of fitting cleanly.
It’s durable, reasonably priced, and holds everything I need for shorter trips (3-4 days). Plus the spinner wheels make it very easy to get through the airport quickly and effortlessly.
Restricted items for Carry-on
Before you board your flight, check the guidelines for the following items:
- Guns, firearms, and other devices that discharge projectiles
- Stun devices.
- Industrial utilities or power tools
- Sharp or pointy objects
- Blunt instruments
- Explosives and flammable substances
Additional restricted items can be found here.
The TSA 3-1-1 Rule
Each passenger may carry liquids, gels, and aerosols in travel-size containers that are 3.4 ounces or one hundred milliliters. Each passenger is limited to one quart-size bag of liquids, gels, and aerosols. Common travel items that must comply with the 3-1-1 liquids rule include toothpaste, shampoo, conditioner, mouthwash, and lotion.
Any liquid that does not meet the TSA 3-1-1 rule will either have to be checked with your luggage or will be thrown away at the security checkpoint.
Exceptions to this rule are certain medications and baby food/child nourishment.
Prohibited Items and Dangerous Goods
There are certain items that are considered dangerous and classified as hazardous materials. Dangerous goods are prohibited from both your carry-on and checked bags on all flights. These rules are not specific to any airline and are mandated by the Federal Aviation Administration and European Aviation Safety Agency.
A complete list can be found on the FAA website, the TSA website, and/or the EASA website.



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