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Pet Carriers

Under-Seat Pet Carrier — 17 × 9 × 11.5 in, Up to 15 lb

Under-Seat Pet Carrier — 17 × 9 × 11.5 in, Up to 15 lb

4.569 reviews4.56 out of 5.0 stars
Regular price $36.99
Regular price Sale price $36.99
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Shipping is free. Discounts and any tax are calculated at checkout.
Ships from the U.S.California & Nevada, 1–5 business days Free U.S. shippingOn every order, no minimum Fit guaranteeIf it does not clear the limit we published, we pay the return
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5 of the 9 airlines we track will take it under the seat on their published figures: American Airlines, Delta, United, Frontier, Allegiant.Footprint as published, height with at most one inch of squash. Check yours against the source.

Before you book

Airlines publish their own maximum size for the space under the seat, and no two are the same. No airline approves carriers — they publish a limit, and the gate agent checks whether the bag fits. Compare all three measurements above against your airline before you buy.

Check my airline

The question that keeps you up the night before a flight is not whether your cat will be comfortable. It is whether the gate agent will make you check the bag. So here are the numbers first.

The measurements

  • 17 × 9 × 11.5 in. The long, narrow one — which is what gets it under a seat that a wider bag will not.
  • Pets up to 15 lb.

It clears five of the nine airlines in our guide: American, Delta, United, Frontier and Allegiant. It does not clear Alaska and Hawaiian, JetBlue or Southwest: all three publish a ceiling lower than this bag’s 11.5 inches, and height is the measurement that does not give enough. Breeze is a different problem — it publishes 8 inches of width and this bag is 9.

What it does well

  • Side entry, so a reluctant cat goes in sideways instead of being lowered in from above.
  • Removable pad, machine washable — because at some point it will need to be.
  • Pockets for treats, papers and a spare lead.
  • A safety loop threads onto a car seat belt so the carrier does not slide off the seat on the drive to the airport.
  • Soft sides give a little at the seat, which is the whole point of a soft-sided carrier.
  • Folds flat for storage between trips.
  • Five colors: smoke grey, turquoise blue, black, pink, purple.

Sizing: measure your pet lying down, nose to the base of the tail, and add 2 inches. Then measure standing, floor to the top of the head. Your pet must be able to stand up and turn around inside — that is the rule every airline writes, and the one gate agents actually check.

Before you book: airlines publish their own maximum under-seat dimensions and they are not the same. Compare the measurements above against your airline’s published limit before you buy — our airline size guide has all nine side by side.

How to measure your pet

Two measurements decide everything.

Length. With your pet lying down, measure from the nose to the base of the tail — not the tip. Add 2 inches. That is the interior length you need.

Height. With your pet standing, measure from the floor to the top of the head.

Your pet must be able to stand up and turn around inside the carrier. That is the rule every airline writes, and the one gate agents actually check. If your pet falls between two interior sizes, take the bigger one — but check its exterior against your airline first. A bag your pet fits in but the airline will not take is no use to either of you.

Shipping & delivery

We ship within the United States only, from warehouses in California and Nevada. Orders placed before 1pm ET on a business day are handed to the carrier the same day; after that, the next business day.

Delivery is typically 1–5 business days depending on how far you are from the warehouse. Shipping is free on every order, with no minimum — you never pay for delivery. Alaska, Hawaii and Puerto Rico are included at the same price; allow a few extra days for those three.

You get a tracking number by email as soon as the label is created.

Returns & exchanges

Thirty days from delivery, in the original packaging and unused. Email us and we will send you a return authorisation and the address for that warehouse before you post anything — a parcel sent back without one cannot be credited.

Wrong size is the most common reason people write to us, and it is the easiest to solve: tell us your pet's measurements and your airline and we will tell you which size to swap to.

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4.56 9 reviews
Why buy it here

The measurements come first

Sized before it is listed

Every carrier lists a length, width and height. Every backpack lists the back length and the weight limit it is built for. The numbers are on the page before you buy, not in the box after it arrives.

Shipped from inside the U.S.

California and Nevada. No customs form, no six-week wait. Most orders leave in a single parcel; where a kit is drawn from two different warehouses we say so on the product page.

Ask before you buy

Send us your pet’s measurements and your airline. We will tell you which size to order, or tell you honestly that we do not have one that fits.