You need to pay special attention to the regulations “What items are prohibited for carry-on luggage?” of airlines to prepare appropriate carry-on luggage for your flight.
Prohibited items
What items are not allowed in carry-on luggage? Restricted Items
- In carry-on luggage, you cannot bring hazardous items that could endanger the safety of people and property on the flight:

Restricted items
What is not allowed in carry-on luggage? Besides prohibited items, passengers need to be aware of the following types of restricted carry-on luggage:
Water, liquids
Various types of water or liquids such as shampoo, shower gel, perfume... when carried on board need to meet the following conditions:
- For domestic flights: Liquid volume carried on board is unlimited.
- For international flights: The maximum liquid volume allowed for carry-on is 1 liter. Within which, liquids must be contained in containers with a capacity of not more than 100ml. These liquid containers need to be placed in a transparent bag.
However, if liquids are purchased within the airport quarantine area, passengers are allowed to carry them on board without needing to downsize. The condition is that liquid-containing items must be in the shopping bag, securely sealed.

Liquids allowed in carry-on luggage
Alcoholic beverages
When carrying alcoholic beverages on board, passengers need to meet the following conditions:
- Alcohol concentration below 24%: Permitted as carry-on luggage according to general regulations for liquids.
- Alcohol concentration from 24% to below 70%: For domestic flights, each passenger is allowed to carry up to 5 liters. Each bottle can have a maximum capacity of 1 liter.
- Alcohol concentration of 70% or above: Prohibited from being carried on board both as carry-on and checked baggage
When flying internationally, passengers must adhere to regulations regarding permitted liquids in carry-on as well as specific requirements of each country.

What items are prohibited for carry-on luggage? Alcohol with an alcohol concentration above 70%
Handheld electronic devices
Various types of electronic devices such as smartphones, iPads, laptops, camcorders, cameras, medical devices... with batteries are allowed to be carried on board if they meet the following conditions:
- Electronic devices with Lithium metal/Lithium alloy batteries containing less than 2g Lithium or Lithium ion batteries with a capacity of up to 100Wh. Each passenger can carry a maximum of 15 devices of this type.
- Medical electronic devices using Lithium metal/Lithium alloy batteries containing 2g - 8g Lithium or Lithium ion batteries with a capacity from 100Wh to 160Wh.
- Electronic devices with wet batteries must ensure no leakage, no absorption, no free liquid with voltage below 12V, capacity below 100Wh...
- Electronic devices with fuel cells batteries must not be charged during the flight.

Handheld electronic devices allowed as carry-on luggage if meeting aviation regulations
Food items
Foods with strong odors like durian, jackfruit, seafood, fish sauce... are advised by airlines to be placed in checked luggage.
This prevents odors in the aircraft cabin from affecting passengers and the cleanliness of the flight.

What items are prohibited for carry-on luggage? Fresh or odorous foods
Electronic cigarettes
Electronic cigarettes are only allowed as carry-on baggage and must comply with the following conditions:
- For personal use only
- Electronic cigarettes must not be charged or used during the flight
- Batteries must be removed and individually protected to prevent activation during transportation. Exposed terminals must be taped to insulate.
- If the device uses Lithium metal batteries, each battery contains a maximum of 2g of Lithium.
- If the device uses Lithium Ion batteries, each battery has a maximum capacity of 100Wh.
- Passengers need to contact the airline to thoroughly check the conditions when carrying electronic cigarettes on board

Electronic cigarettes must meet certain conditions to be carried on board
Ashes, ashes, dust
Human remains in ash form are permitted in carry-on luggage under the following conditions:
- Accompanied by a death certificate
- Contained in an airtight box
- Accompanied by a health inspection permit from the provincial or municipal health authority
Tips for preparing carry-on luggage in compliance with regulations
Passengers need to be aware of the following tips to ensure proper preparation of carry-on luggage in compliance with regulations:
- Make a checklist of items to pack in your carry-on luggage and check if there's anything unsuitable.
- For each country, carry-on luggage regulations may vary. It's advisable to research thoroughly to ensure you're packing the most appropriate luggage to avoid penalties.
- Pack your carry-on luggage according to the standards for size, weight, etc., as stipulated by the airline.

What items are not allowed in carry-on luggage?
Above is the detailed answer to the question 'What items are not allowed in carry-on luggage?' Make sure to keep this regulation in mind while preparing your luggage for the upcoming flight.
If you have any doubts when preparing your luggage, feel free to call the airline or contact Mytour.vn at 1900 2083 for quick assistance.
Don't forget to book your flight tickets at Mytour.vn for the best prices and attentive, professional service from our experienced staff. As a top-tier authorized agent for major airlines with over 14 years of experience, Mytour.vn guarantees the lowest prices and reliable service to satisfy our customers.
Author: Thanh Ha