French Bulldog puppy cabin flight crate guide

Travelling with an 8-week-old French Bulldog puppy in cabin is very doable, but the crate requirements are strict and vary by airline — get the dimensions wrong and the carrier won't be allowed under the seat, full stop. Most airlines require the bag to fit within roughly 45 x 25 x 28 cm (though this varies), it must be soft-sided for cabin travel, well-ventilated, and the dog must be able to stand and turn around inside. Which airline are you flying with, and do you have your puppy's current weight and measurements handy?

Good — British Airways is one of the stricter ones. They actually don't allow pets in the cabin on most routes, only registered assistance dogs. Are you flying a domestic UK route, or is this an international flight? That detail matters a lot here because it changes your options completely.

That's a really important thing to flag: British Airways does not permit pet dogs in the cabin on any of their routes, including domestic UK flights. So a cabin carrier won't work for BA regardless of size. Your realistic options for that route are either travelling by car or train with her, or using a courier service that specialises in pet transport. If you're open to switching airline, Loganair is one of the very few UK airlines that does allow small dogs in cabin on domestic routes — it's worth checking their current pet policy directly as it changes. Would it help to talk through what you'd need if you went the Loganair route instead, or are you weighing up alternatives like driving?

For a Loganair cabin flight with an 8-week-old French Bulldog at 1.2 kg, I'd recommend the Petsfit Comfort Carrier. It's a soft-sided, well-ventilated carrier with dimensions of approximately 44 x 28 x 28 cm, which fits within Loganair's typical under-seat allowance, and it has a fleece liner, mesh panels on multiple sides, and a secure zip system — all things airlines want to see. At that weight your puppy will have plenty of room to stand and turn, and French Bulldogs being brachycephalic means airflow matters, which the mesh panels handle well. It's available on Amazon UK and runs around £40–50. One thing to do before you buy: call Loganair directly to confirm their current carrier dimensions, because these policies do get updated and you want to verify before you commit.

A few practical things: French Bulldogs are a brachycephalic breed, which means some airlines have blanket bans on them even in cabin due to breathing risk at altitude — always declare the breed when booking, not just the size. At 8 weeks she'll also need to be vet-checked and have appropriate documentation. Book the pet space at the same time as your ticket, not after, because cabin pet spots are limited and airlines hold very few per flight. And get her comfortable in the carrier at home before travel — a couple of short sessions with treats will make a real difference on the day.