Look for a "Travel with a pet" toggle or a traveler dropdown menu.

How you "buy" the ticket depends entirely on your dog's size and the airline's specific rules.

Most carriers, including Air India , require you to register your pet at least 48 hours before departure to ensure there is space, as many flights limit the number of pets allowed in the cabin. 3. Essential Pre-Flight Checklist

Must be leak-proof and allow the dog to stand up and turn around. Soft-sided carriers are best for fitting under seats.

Some boutique or luxury airlines, such as JSX , allow you to purchase an actual adjacent seat for a larger dog to sit on the floor in front of.