For most travelers, United Airlines’ standard fee for an in-cabin pet (a small dog or cat that fits in an airline-approved carrier under the seat) is typically $125 each way. If your trip includes a longer stopover, United may also add an additional $125 service charge for that layover (for example, a stop over 4 hours on domestic itineraries or over 24 hours on international itineraries).
Because airline policies, route rules, and availability can change, the most reliable way to confirm your exact total is to add your pet during booking (or call United) and review the final fee before you pay.
The pet fee is essentially the price of bringing your pet into the cabin with you—separate from your own ticket. It doesn’t include a carrier, and it doesn’t guarantee extra space beyond what fits safely under the seat. That’s why choosing a well-structured, ventilated carrier and practicing calm “carrier time” before travel can make a huge difference in comfort.
United’s under-seat requirement means your pup will be close—so focus on cozy, secure essentials: a supportive travel bed or mat, a carrier with sturdy handles, and organized storage for treats, wipes, and paperwork. For a comfort-first packing approach, see our pet travel guide here: https://kingwuff.com/blog/guide-pet-travel-comfort-gear-dog-carriers-walk-bags-tips/.
Often, yes—but rules can be stricter in Basic Economy, and your pet carrier may count toward what you’re allowed to bring onboard. Confirm during booking that an in-cabin pet can be added to your specific fare and route.
Your dog typically must be small enough to fit comfortably in a ventilated, leak-resistant carrier that stows under the seat, and you’ll need to follow United’s health and documentation rules for your route. Requirements can vary for domestic vs. international travel.
United’s in-cabin pet fee is typically $125 each way, with a possible additional $125 charge for certain longer stopovers. Your final total depends on itinerary details.
