Treat the Terminal as a Place to Wait, Not to Explore
The safest layover is a boring one. Your cat stays in her closed carrier, positioned at your feet in the quietest corner you can find, away from the main walking routes, food court smells and the dogs also travelling that day. Keep a light cover over part of the carrier if that is how she settles at home, leaving airflow on the uncovered side. Resist opening the carrier to comfort her in open seating: a startled cat in a terminal can be under a row of seats or through a service gap in seconds, and airport staff see escapes like this regularly. Choose your seat once, near a wall and away from automatic doors, and stay put as much as you can rather than carrying her around a busy building.
Use One Secure Room for Water, Litter and a Liner Change
Many larger airports have a pet relief area, and a fully enclosed one is the one place worth opening the carrier. A family room or accessible restroom with a door that closes completely can also work. Inside, with the door shut, offer water in a small spill-proof dish, because cats often refuse water in transit but should be given the chance during a long gap between flights. Set down a disposable portable litter tray if you carry one, then step back and give her a few unhurried minutes; many cats will not use it with an audience and a strange floor, and that is normal. If the carrier liner is wet or soiled, this is your moment to swap it for a clean one and seal the used liner in a bag.
Let Rest Do the Work Between Flights
Most cats cope with a long layover by sleeping through it, and your job is mostly to protect that rest. Keep handling to a minimum, speak quietly when you check her, and avoid feeding a full meal mid-journey, since a full stomach plus turbulence on the next leg is a common recipe for vomiting in the carrier. A very small amount of her usual food is reasonable on a genuinely long layover if she is asking for it and has travelled calmly so far. Keep track of the basics as you wait: whether she has drunk anything, used the tray, or been sick, because that short history helps you judge how she is coping and is worth passing to a vet if she seems unwell after arrival.
Prepare for the Next Flight Before Boarding Is Called
Give yourselves an unhurried run-up to the next departure. Check the carrier door fastening, confirm any absorbent layer is dry and flat, and make sure your cat is settled and the carrier closed well before you join a boarding queue, where a jostling crowd is the worst place to be fumbling with latches. Keep your documents for the cat in the same hand luggage pocket every time, so a request at the gate does not mean unpacking bags at the desk. Head to the gate area early enough to take a seat at the edge of the crowd again, and keep the carrier on the floor rather than on a seat or trolley, where a knock can tip it.
Travelling with KinsLe's Pet Passport means your cat's health certificate copies, vaccination record and microchip details sit in one packet in your hand luggage, ready for any airline or border check the layover throws at you.