If you can't bring seafood on the plane with you, according to airline regulations, seafood and other such live animals can not be brought into the cabin as a passenger carry-on items, only check-in procedures. When checking in, as long as the baggage is within the free check-in weight, it will be free of charge. If it exceeds the required amount, an additional fee will be charged.

If a passenger buys economy class, the free baggage check-in weight is 20kg, and 40kg for those who buy first class.The charge for excess baggage will be different for different airline options. It is usually calculated at 1.5% of the economy class fare.

The precautions for seafood check-in are as follows:

1. If you want to check in seafood during the flight, you need to communicate with the airline in advance.

2. When packing seafood, it's best to use a plastic box or foam box for the outer packaging. Then put the seafood on the foam inside and then put a plastic bag outside to avoid water seepage.

3. The weight of consigned seafood should not exceed 20 kilograms. If travelers need to carry a large amount of live seafood, they should choose to take the airport cargo channel.

4. No water or ice is allowed in the foam or plastic boxes. If you need to keep seafood at low temperature, you can freeze mineral water first, then tighten the cap and put it into the foam box or plastic box to freeze.

5. If you want to check in seafood, you need to reserve enough time to pack the goods and finally arrive at the airport one to two hours in advance.