At JetBlue, we love our pets! That's why we have a pet policy that is second to none. JetBlue Pet Policy Here are the basics: You can bring your pet on all JetBlue flights, including international flights. (So long as it's legal to do so in the destination country). Pets travel in the cabin with you at no extra charge, provided they are small enough to fit comfortably in a carrier or container that fits under the seat in front of you. All pets must travel in an approved carrier and must be able to sit upright when inside the carrier. Learn more about traveling with your small pet here.