A large dog travelling in the hold is not luggage with a label, and the booking page will not tell you the things that decide whether the journey is workable. Routes differ, aircraft differ, and a flight that accepts dogs in mild weather may refuse them when ground temperatures climb. Start with a direct conversation with the airline, write down the answers with the name of the person who gave them, and do not pay for a ticket until every answer below is clear for the exact flights you intend to use.
Crate Standards, Weight and Breed Rules
Ask for the crate requirements in full: maximum external dimensions for that aircraft, whether the crate must be rigid with a solid roof, how the door must fasten, whether ventilation is required on multiple sides, and how water containers must attach. Weigh your dog together with the crate, bedding, and bowls, because the limit that matters is the combined figure, and ask whether that combined weight is accepted on every leg, not just the first. Raise breed honestly at this stage. Some carriers restrict short-nosed breeds or certain large breeds, and discovering that at check-in leaves you with no flight and a stressed dog in an airport. If your dog is a mix, ask what description they need recorded so the check-in team does not improvise a refusal on the day.
Temperature Embargoes and the Connection Question
Heat and cold on the ground are the hold's real hazard, so ask at what ground temperatures the airline stops accepting dogs, and whether that judgment is made at departure, at arrival, or at a connecting airport as well. A short connection can mean a long wait on hot tarmac equipment, so ask how long he will be outside during transfer, whether the hold is confirmed on the same plane as you for each leg, and what happens to him if your passenger flight is re-routed but his booking is not. Prefer a direct flight even at a worse hour, travel in the cooler part of the day where the route allows it, and ask what the plan is if an embargo is declared after you have already checked him in.
Ask What Happens When the Plan Breaks
Flights slip, and his booking needs a failure plan as much as a success plan. Ask what happens if the passenger flight is cancelled after he has been accepted: where is he kept, who feeds and waters him, and is he rebooked automatically or only when you reach a desk? Ask whether a long delay triggers a return to you rather than an unattended wait, and how the airline contacts you mid-journey if an embargo is imposed at the connection. Get the collection point and its opening hours at the destination, because cargo facilities often sit away from the passenger terminal and close earlier than arrivals halls suggest.
Timing, Paperwork and Handover at Both Ends
Ask for the drop-off window in minutes before departure, the latest acceptance time, and exactly where large-dog check-in happens, because it is often a separate desk with its own queue. Confirm which health documents and identification must be shown, how far ahead any veterinary visit must fall, and whether copies stay with the crate. Feed and walk him well before drop-off following the airline's own timing guidance, label the crate with your contact details and his name, and agree who is authorised to collect him if you are delayed. Before departure day, that collector can already know his settling routine and vet details, shared in advance via a Care Pass that KinsLe closes automatically once the trip ends.