Airline-Approved Pet Carriers

TSA does not certify or approve specific pet carrier brands or models. At the security checkpoint, you will be asked to remove your pet from the carrier and carry them through the body scanner. The empty carrier goes through the X-ray belt separately. Re-secure your pet on the other side before continuing to your gate. A carrier with a wide top or front opening makes this significantly easier, particularly if your pet is anxious in a busy terminal. Compliance with your airline's in-cabin pet policy is a separate requirement from TSA screening, so verify both before you travel.

Most major U.S. airlines require a soft-sided carrier within approximately 18 x 11 x 11 inches (46 x 28 x 28 cm), though exact dimensions vary by airline and aircraft type. Delta, United, American Airlines, Southwest, and Alaska Airlines each publish their own under-seat size requirements, and seat configurations also differ between aircraft on the same airline. Always verify the specific dimensions with your airline before purchasing. Soft-sided carriers are preferable to rigid-framed bags for under-seat travel: they compress slightly to accommodate seats that run narrow, where a hard shell won't.

The most reliable approach is to confirm your airline's under-seat dimensions directly, then measure your dog before purchasing. Check your dog's length (nose to tail base), standing height (floor to the top of the head), and shoulder width. Your dog should be able to sit, stand, and turn around inside the carrier without pressing against the sides. Weight alone is not sufficient guidance: a long-bodied small dog may need more interior length than a compact dog of the same weight.

For pets up to 11 lbs (5 kg), FikaGO's TRUFFLE is designed with under-seat airline travel in mind and sized to meet most major U.S. airline requirements. For pets between 11–22 lbs (5–10 kg), the TRUFFLE PLUS offers extra interior space and comfort, though it is not specifically designed for airline under-seat requirements and may not be accepted for in-cabin travel on all airlines. Always confirm your airline's pet carrier size limits before purchasing or flying.

The single most important factor is fit, both the carrier's fit under the airline seat and your pet's fit inside it. A carrier that meets the weight limit but is too short for your pet to stand or turn around in will cause distress on a long flight. Before purchasing, measure your dog's length (nose to tail base), standing height (floor to the top of the head), and shoulder width, then add 1–2 inches (approx. 2–5 cm) to each measurement. Your pet should be able to stand upright, turn a full circle, and lie down naturally. Beyond dimensions, look for ventilation that keeps air moving without drafts and a secure zipper your pet cannot work open from inside. An interior attachment point to clip your pet's harness adds a useful secondary safety layer.

A stylish soft-sided carrier balances aesthetics with practical requirements. Look for structured side panels that hold their shape under the seat rather than sagging against your pet, and premium fabric that resists scuffing across repeated trips. The design should read as intentional in an airport or café setting, not purely utilitarian. Functionally, breathable mesh panels should maintain ventilation without disrupting the bag's overall silhouette. Reinforced carry handles and a padded shoulder strap matter more on longer travel days than they might seem when you're shopping. Interior dimensions are as important as exterior design: a well-built carrier should accommodate your pet comfortably without looking oversized from the outside. Minimalist and structured designs, like FikaGO's TRUFFLE range, tend to hold their appearance through heavy use better than trend-driven styles.