Pet immigration is usually talked about as paperwork, vaccinations, and permits. But the airline rules are the part that surprises most pet owners. You may have everything ready, but if the airline refuses your pet, the whole plan collapses.
Airlines are strict for a reason. They are responsible for your pet’s safety during the flight. That means they enforce rules about crate size, ventilation, temperature, and pet weight. These rules are not flexible, and they are not “suggestions.” Even small mistakes can lead to refusal at check-in.
Why airline rules are a major issue in pet immigration
Many owners assume that once the documents are ready, the pet can travel. But airlines have their own standards. Some airlines allow pets in the cabin, while others only allow cargo. Some restrict certain breeds, and some have seasonal bans due to temperature.
Here are the most common airline issues people face:
- Crate size does not meet airline standards
- Pet weight exceeds the limit
- Airline only allows cargo transport
- Seasonal restrictions due to temperature
- Transfers and connections cause risk
These issues often happen even when all paperwork is perfect. This is why airline planning is a key part of successful 寵物移民.
Crate rules: the most common reason for rejection
A pet crate must allow your pet to:
- Stand without touching the top
- Turn around comfortably
- Lie down in a natural position
A lot of owners buy a crate that looks correct, but the airline rejects it because of measurements or construction. For example, some crates need ventilation on all sides. Some airlines require specific materials and locking systems. This is why you must check the airline’s crate rules early.
Seasonal restrictions: don’t ignore them
Some airlines restrict pet travel in summer or winter. High temperatures can be dangerous, especially for brachycephalic breeds like pugs or Persian cats. Even if the cargo hold is temperature controlled, airlines still apply restrictions because delays can cause serious risks.
If you’re moving during summer, consider:
- Flying early in the morning
- Choosing an airline with strong pet transport policies
- Avoiding routes with long transfers
Transfers and connecting flights increase risk
Many people choose cheaper flights with transfers. But for pets, transfers increase the risk of:
- Delay
- Mishandling
- Extended waiting time
- Lost or misplaced cargo
If possible, choose a direct flight. If not possible, make sure the transfer time is long enough and the airline has clear procedures for pet handling.
How to avoid airline surprises
To reduce the chance of rejection, follow these steps:
- Check the airline’s pet policy in detail
- Confirm crate requirements and measurements
- Confirm whether your pet travels in cabin or cargo
- Avoid tight transfers
- Prepare all documents and keep copies
- Book early, because pet spaces fill up quickly
Final thoughts
Pet immigration is not only about government permits. Airline rules are equally important. If you underestimate this part, you may end up with a canceled trip, extra costs, or worse, your pet being refused at check-in.
If you plan ahead, check all rules carefully, and choose the right pet travel company, your pet’s journey will be much smoother. Pet immigration is possible, but it requires attention to details. Once your pet arrives safely, you’ll feel relieved and proud that you managed it well.

