1. You can take food with you on the plane, but you should pay attention to the fact that you can't take drinks and drinks with you, so you can't get through the security check. However, after the security check, there are usually drinks sold. ? Of course, you should take the food you eat on the plane with you. Don't check it, but try not to bring the soup that is easy to spill. It seems that things like canned food and tinfoil seal can't pass the security check, so you should make preparations in advance.

2. meals on the plane are free. Air China usually has snacks or peanuts at this time, and dinner should be hamburgers and hot dogs. Drinks are generally mineral water, coffee and tea. Under normal circumstances, you can ask for a different cup, or ask for a refill (there are many kinds of drinks in China Southern Airlines)

3. If you feel that your ears are not adapted to the air pressure, you can eat some chewing gum and the like, which can alleviate the symptoms.

4. If you are sitting for the first time, it is recommended not to take a plane as a picnic, and don't make too many snacks. Someone will treat you differently. It is suggested to bring a magazine or something to supplement spiritual food.

Extended information:

1. According to the transportation responsibility, it is divided into checked baggage, self-care baggage and carry-on articles. Important documents and materials, diplomatic envelopes, securities, currency, bills of exchange, valuables, fragile and perishable articles, and other articles that need special care shall not be checked in luggage.

2. The carrier shall be liable for the loss or damage of the above-mentioned items carried in the checked baggage according to the general checked baggage. Prohibited articles, restricted transport articles, dangerous articles, and other articles with peculiar smell or easy to pollute the aircraft stipulated by the state cannot be checked as luggage or sandwiched in luggage.

3. The carrier may refuse to collect the luggage or terminate the transportation at any time if it finds that the luggage contains any articles that cannot be transported as luggage or sandwiched in the luggage before collecting the luggage or during the transportation. Passengers are not allowed to carry controlled knives on board. Sharp or blunt tools other than controlled knives should be checked with the checked baggage and cannot be carried with you.

4. The name, detailed address and telephone number of the passenger should be indicated on the luggage. The weight of each piece of checked baggage should not exceed 51 kilograms, and the volume should not exceed 41×61×111 centimeters. Baggage exceeding the above provisions must be checked with the prior consent of the carrier. The weight of self-help luggage should not exceed 11 kg, and the volume of each piece should not exceed 21×41×55 cm.

5. The weight of carry-on articles is limited to 5 kilograms per passenger. Passengers holding first-class tickets can carry two items with them. The volume of each carry-on article shall not exceed 21×41×55 cm. Carry-on articles exceeding the above weight, number of pieces or volume limit shall be checked as checked baggage.

Reference: Ministry of Justice of China-Civil Aviation Law of the People's Republic of China.