Best hard-shell cabin carrier for Whippets

A broken zipper mid-trip is genuinely stressful — and it's exactly the kind of failure that makes a hard-shell carrier worth the switch. Travel crates have very specific requirements depending on whether your dog is going by car, in the cabin, or in the hold, and airline rules vary a lot between carriers, so getting the wrong one can mean your dog doesn't board. To point you to the right upgrade, can you tell me your Whippet's current weight and rough measurements (length nose-to-tail, height at shoulder), which airline you're flying with, and whether they'll be in the cabin with you?

Thanks — those dimensions are the critical part here. British Airways allows cabin pets on some routes but I want to flag: BA's current policy on their own metal aircraft doesn't permit dogs in the cabin on most routes, only assistance dogs. Are you flying with a partner airline, or is it possible she'll be travelling in the hold? That changes everything about which hard-shell to get.

Good catch — that matters a lot. KLM allows dogs in the cabin up to 8kg including the carrier, and the carrier must fit under the seat (max 46 x 28 x 24cm on most KLM aircraft). At 11kg, your Whippet will unfortunately exceed KLM's cabin weight limit regardless of the carrier. She'd need to travel in the hold on that flight. Do you want me to recommend a solid IATA-approved hard-shell for hold travel, or are you reconsidering the airline?

For hold travel with a Whippet at 11kg, the Ferplast Atlas 20 Professional is the right call. It's fully IATA-compliant, made from robust ABS hard plastic with a secure bolt-closure door (no zips anywhere), good ventilation on all four sides, and has a carry handle plus fitting for airline-standard luggage tags. The interior is 57 x 37 x 38cm, which gives your Whippet enough room to stand, turn, and lie down — the IATA minimum is that she can do all three comfortably. It comes in at around £45–55 on Amazon UK, which is strong value for a genuine IATA hold-approved crate. One thing to do before you book: contact KLM directly to confirm the specific crate dimensions they accept, as individual aircraft can vary slightly. But the Atlas 20 Professional clears the standard IATA spec comfortably.

Yes — don't leave it until travel day. Set the crate up at home two to three weeks before, with the door open and something she already sleeps on inside. Feed her near it, then in it. Once she's comfortable going in voluntarily, start closing the door for short periods and build up gradually. Whippets can be quite sensitive to new environments so this step genuinely makes a difference to how settled she'll be during the flight. Also worth a quick vet check before flying — some airlines require a health certificate issued within 10 days of travel, and KLM is one of them.