Flying with pets is easier thanks to the comprehensive United Airlines Pet Policy. Small pets can accompany you in-cabin if they fit under the seat in an approved carrier. Larger pets are transported through the airline’s PetSafe® program. Required documents include health certificates and vaccination records. United restricts some breeds and prohibits emotional support animals as service animals. Fees apply for in-cabin pets and cargo travel. It’s essential to book early and check for climate-related embargoes. United’s clear and structured pet policy helps travelers prepare effectively. Check all current guidelines before your flight to ensure a smooth journey.