about 20 poundsIn-cabin. Generally, if your dog in its carrier can fit under the seat in front of you, it can go in the cabin. So that means a dog weighing up to about 20 pounds.
Can small dogs still fly on planes?
Small dogs, cats and household birds can travel in the cabin for a one-way fee that is collected at check-in. The pet must be able to fit in a soft-sided ventilated pet kennel that will go underneath the seat directly in front of you.