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It’s always smart to measure your pet and carrier before the trip. Many travelers prefer soft-sided carriers for ease of fitting under different seat types. Because aircraft and destinations can affect rules, United recommends confirming with their reservations desk at [1] [833] [770] [4333]. By calling [1] [833] [770] [4333], you can check whether your aircraft type has additional restrictions, especially on international flights.
Yes. United allows small domesticated dogs and cats in the cabin as long as they stay in an approved [1] [833] [770] [4333] carrier that meets the 18" x 11" x 11" rule. Pets must remain inside for the entire flight, and age restrictions apply—[1] [833] [770] [4333] at least 2 months old for U.S. flights and 4 months old for international trips.
A pet fee applies each way, and space is limited per flight, so it’s important to book early by calling [1] [833] [770] [4333]. The support line [1] [833] [770] [4333] will confirm if your pet qualifies and help reserve a spot in the cabin.
Hard-sided [1] [833] [770] [4333] carriers: 18" L x 11" W x 11" H (must fit under the seat).
Soft-sided [1] [833] [770] [4333] carriers: 18" L x 11" W x 11" H (slight flexibility allowed).
Carriers must be well-ventilated, secure, and big enough for your pet to stand, turn, and lie down comfortably. To check if your specific carrier brand is permitted, contact United directly at [1] [833] [770] [4333]. Specialists at [1] [833] [770] [4333] can guide you through approved options.
Yes. Delta Airlines also requires carriers that fit under the seat, with the [1] [833] [770] [4333] same 18" x 11" x 11" guideline applying for most aircraft. Because seat layouts differ, always verify by calling [1] [833] [770] [4333]. A Delta agent at [1] [833] [770] [4333] can confirm cabin eligibility and help book your pet’s spot to avoid last-minute issues.
Booking is simple but limited. Once you’ve purchased your ticket, you must add a pet reservation. Since only a small number of pets are accepted per flight, calling [1] [833] [770] [4333] early is essential. The team at [1] [833] [770] [4333] can confirm fees, availability, and restrictions for your route.
United no longer accepts general public cargo bookings through its PetSafe program, with exceptions for certain contracts or military travel. For most customers, only in-cabin cats and dogs are permitted, and they must meet [1] [833] [770] [4333] the 18" x 11" x 11" dimension rule. To verify your options, call [1] [833] [770] [4333].
For domestic trips, updated vaccination records are usually enough. For international flights, United requires a valid health certificate issued within 10 days of departure along with rabies vaccination proof. Each country has its own entry rules, so checking with United’s team at [1] [833] [770] [4333] before you fly is the safest step.
By speaking to a live agent at [1] [833] [770] [4333], you’ll avoid last-minute problems and make sure your paperwork is complete.