Dreaming of taking your furry best friend on an adventure with Allegiant Air? Many pet owners face a big question: what carrier will actually work? It is exciting to travel, but worrying about your pet’s comfort and following airline rules can cause stress. Allegiant has specific rules about size and material for in-cabin carriers. Getting this wrong means delays or even denied boarding, and nobody wants that headache.
Finding the perfect carrier is more than just picking a cute bag. It must fit under the seat, keep your pet safe, and meet Allegiant’s strict guidelines. This can feel like solving a tricky puzzle! We know you want a smooth trip where your companion is happy and secure.
This guide cuts through the confusion. We break down exactly what Allegiant requires. You will learn the best carrier types, what dimensions matter most, and key features to look for. Keep reading to find the ideal, stress-free travel solution for you and your beloved pet.
Top Pet Carrier For Allegiant Airlines Recommendations
- 【AIRLINE APPROVED CARRIER 】Unfolded size:19"L×13"W×(9+3.5)"H, Petskd pet carrier is TSA approved and can be placed under the seat in the cabin, it is mainly designed for ①Southwest Airlines:18.5x13.5x9.5" ②Allegiant Airlines:19x16x9", but also compatible with Air Canada:21.5x15.5x10.5". We recommend you buy this carrier when you fly with the above-mentioned airlines.
- 【CHECK SIZE BEFORE BUYING】In order to fit the under-seat dimensions of airlines, this carrier can only fit small dogs. We recommend that the pet size you carry be within 17"L x 11"W x 11"H ,dog weight under 12lbs and cat weight under 15lbs. Please don't choose the carrier only based on weight but also reference your pet's length and height.
- 【BETTER VENTILATION】Petskd pet carrier has mesh ventilation on 5 sides for good ventilation and good viewing—perfect for your pet to look out and for you to check on your pet;the Dog carrier has 3 openings, and each opening has two non-slip zippers to ensure pet safety.
- 【SAFE DESIGN】Soft dog travel carrier bag upgraded structural design of stainless steel and Fiber rod that makes our dog carrier bags for small dogs will not be out of shape or sagged and the top does not collapse, pet dog carrier bag preferable stability. Built-in adjustable rope buckle, easy to lock the collar. Zipped snap lock to avoid pets to open or grab open the zipper.
- 【DURABLE MATERIAL】Made of waterproof, non-toxic, scratch-resistant polyester fabric material, waterproof and wear-resistant; after comparing similar products, we upgraded the mesh material to effectively prevent pets from tearing the mesh with their nails and prevent pets from falling out of the carrier.
- 【CHECK SIZE BEFORE BUYING】In order to fit the under-seat dimensions of airlines, this carrier can only fit small dogs and cats. We recommend that the pet size you carry be within 14"L x 9"W x 8"H(this carrer's inner size), please choose the carrier reference your pet's length and height. Reference pet weight: dog weight under 8LBS and cat weight under 10LBS.
- 【AIRLINE APPROVED CARRIER 】Unfolded size:17"L×12"W×(8.5+3.5)"H, Petskd pet carrier is TSA approved and can be placed under the seat in the cabin(after remove the wheel base), it is mainly designed for ①JetBlue Airlines ②Allegiant Airlines ③Spirit Airlines ④Frontier Airlines, but also in compliance with ⑤Southwest Airlines. We recommend you buy this carrier when you fly with the above-mentioned airlines.
- 【BETTER VENTILATION】Petskd pet carrier has mesh ventilation on 5 sides for good ventilation and good viewing—perfect for your pet to look out and for you to check on your pet;the Dog carrier has 3 openings, and each opening has two non-slip zippers to ensure pet safety.
- 【SAFE DESIGN】Soft dog travel carrier bag upgraded structural design of stainless steel and Fiber rod that makes our dog carrier bags for small dogs will not be out of shape or sagged and the top does not collapse, pet dog carrier bag preferable stability. Built-in adjustable rope buckle, easy to lock the collar. Zipped snap lock to avoid pets to open or grab open the zipper.
- 【DURABLE MATERIAL】Made of waterproof, non-toxic, scratch-resistant polyester fabric material, waterproof and wear-resistant; after comparing similar products, we upgraded the mesh material to effectively prevent pets from tearing the mesh with their nails and prevent pets from falling out of the carrier.
- 【CHECK SIZE BEFORE BUYING】In order to fit the under-seat dimensions of airlines, this carrier can only fit small dogs and cats. We recommend that the pet size you carry be within 15"L x 8"W x 11"H(this carrer's inner size), please choose the carrier reference your pet's length and height. Reference pet weight: dog weight under 10LBS and cat weight under 12LBS.
- 【AIRLINE APPROVED CARRIER 】Unfolded size:18"L×(11+6.5)"W×(11+3.5)"H, Petskd pet carrier is TSA approved and can be placed under the seat in the cabin, it is mainly designed for ①Delta Airlines:18x11x11" ②United Airlines:18x11x11" ③AA:18x11x11". We recommend you buy this carrier when you fly with the above-mentioned airlines.
- 【BETTER VENTILATION】Petskd pet carrier has mesh ventilation on 5 sides for good ventilation and good viewing—perfect for your pet to look out and for you to check on your pet; the dog carrier has 3 openings, and each opening has two non-slip zippers to ensure pet safety.
- 【SAFE DESIGN】Soft dog travel carrier bag upgraded structural design of stainless steel and Fiber rod that makes our dog carrier bags for small dogs will not be out of shape or sagged and the top does not collapse, pet dog carrier bag preferable stability. Built-in adjustable rope buckle, easy to lock the collar. Zipped snap lock to avoid pets to open or grab open the zipper.
- 【DURABLE MATERIAL】Made of waterproof, non-toxic, scratch-resistant polyester fabric material, waterproof and wear-resistant; after comparing similar products, we upgraded the mesh material to effectively prevent pets from tearing the mesh with their nails and prevent pets from falling out of the carrier.
- 【CHECK SIZE BEFORE BUYING】In order to fit the under-seat dimensions of airlines, this carrier can only fit small dogs and cats. We recommend that the pet size you carry be within 14"L x 9"W x 8"H(this carrer's inner size), please choose the carrier reference your pet's length and height. Reference pet weight: dog weight under 8LBS and cat weight under 10LBS.
- 【AIRLINE APPROVED CARRIER 】Unfolded size:17"L×12"W×(8.5+3.5)"H, Petskd pet carrier is TSA approved and can be placed under the seat in the cabin(after remove the wheel base), it is mainly designed for ①JetBlue Airlines ②Allegiant Airlines ③Spirit Airlines ④Frontier Airlines, but also in compliance with ⑤Southwest Airlines. We recommend you buy this carrier when you fly with the above-mentioned airlines.
- 【BETTER VENTILATION】Petskd pet carrier has mesh ventilation on 5 sides for good ventilation and good viewing—perfect for your pet to look out and for you to check on your pet;the Dog carrier has 3 openings, and each opening has two non-slip zippers to ensure pet safety.
- 【SAFE DESIGN】Soft dog travel carrier bag upgraded structural design of stainless steel and Fiber rod that makes our dog carrier bags for small dogs will not be out of shape or sagged and the top does not collapse, pet dog carrier bag preferable stability. Built-in adjustable rope buckle, easy to lock the collar. Zipped snap lock to avoid pets to open or grab open the zipper.
- 【DURABLE MATERIAL】Made of waterproof, non-toxic, scratch-resistant polyester fabric material, waterproof and wear-resistant; after comparing similar products, we upgraded the mesh material to effectively prevent pets from tearing the mesh with their nails and prevent pets from falling out of the carrier.
- 【CHECK SIZE BEFORE BUYING】In order to fit the under-seat dimensions of airlines, this carrier can only fit small dogs and cats. We recommend that the pet size you carry be within 14"L x 9"W x 8"H(this carrer's inner size), please choose the carrier reference your pet's length and height. Reference pet weight: dog weight under 8LBS and cat weight under 10LBS.
- 【AIRLINE APPROVED CARRIER 】Unfolded size:17"L×12"W×(8.5+3.5)"H, Petskd pet carrier is TSA approved and can be placed under the seat in the cabin(after remove the wheel base), it is mainly designed for ①JetBlue Airlines ②Allegiant Airlines ③Spirit Airlines ④Frontier Airlines, but also in compliance with ⑤Southwest Airlines. We recommend you buy this carrier when you fly with the above-mentioned airlines.
- 【BETTER VENTILATION】Petskd pet carrier has mesh ventilation on 5 sides for good ventilation and good viewing—perfect for your pet to look out and for you to check on your pet;the Dog carrier has 3 openings, and each opening has two non-slip zippers to ensure pet safety.
- 【SAFE DESIGN】Soft dog travel carrier bag upgraded structural design of stainless steel and Fiber rod that makes our dog carrier bags for small dogs will not be out of shape or sagged and the top does not collapse, pet dog carrier bag preferable stability. Built-in adjustable rope buckle, easy to lock the collar. Zipped snap lock to avoid pets to open or grab open the zipper.
- 【DURABLE MATERIAL】Made of waterproof, non-toxic, scratch-resistant polyester fabric material, waterproof and wear-resistant; after comparing similar products, we upgraded the mesh material to effectively prevent pets from tearing the mesh with their nails and prevent pets from falling out of the carrier.
- AIRLINE APPROVED CARRIER - Pet carrier for dog cat is TSA approved and placed under the seat in the cabin, mainly designed for ①Frontier Airlines, ②Southwest Airlines, We suggest checking carrier size with the airline before traveling. Kindly note: pet size you carry be within 17"L x 12"W x 8.5"H (inner size) and weight recommended max load of 15 LBS small cats and dogs, Please refer to your pet's length and height to choose the size of the carrier
- EXPANDABLE SPACE - Top-expandable designe Gaining more space to move around. It is easy for pets to stand and stretch, also creates a safe environment to avoid stress reactions anxiety while traveling
- BETTER BREATHABILITY - The small dog cat carrier has breathable mesh on three sides for a breathable, wide-open view for your pet to look out and for you to view and communicate with your pet
- MORE SAFELY - The pet carrier for dog cat is designed with upgraded structure of stainless steel and fiber rods, it is deformation or sagging, collapse and better stability. Zipper snap lock prevents pets from opening or scratching the zipper open
- STURDY FABRIC - Comparison of similar products made of waterproof, non-toxic, scratch-resistant and wear-resistant new fabrics, mesh material has been upgraded to effectively prevent pets from tearing the mesh with their nails, preventing pets from falling out of the pet carrier for dog cat
- 【AIRLINE APPROVED SOFT-SIDED DESIGN】 Designed with a flexible soft-sided structure that conforms to under-seat spaces better than rigid hard shells. By simply popping off the wheels, this TSA-friendly carrier meets the 18x11x11" limit for Delta, United, American, Southwest, and Allegiant. Fits perfectly under the front cabin seat. Note: Always check specific airline rules before flying.
- 【SAVE YOUR BACK & SHOULDERS】 Stop carrying heavy loads. Our rolling pet carrier features smooth 360° silent wheels and a durable telescopic handle. Glides effortlessly through airports and vet clinics, giving your back a well-deserved rest.
- 【SECURE DETACHABLE WHEELS】 Wheels attach firmly for a smooth ride but detach in seconds for storage or to fit under tight airplane seats. The anti-tip stable frame prevents the carrier from collapsing or tipping over, keeping your pet safe.
- 【DUAL EXPANDABLE & MAX VENTILATION】 Features 3 mesh windows on the main body for constant airflow. Need more space? Two sides expand to create a massive "patio" for your pet, with both expandable sections also featuring breathable mesh. This design ensures your pet stays cool and has double the room to stretch out.
- 【FOR SMALL PETS UP TO 15 LBS】 Ideal for small dogs (Yorkies, Chihuahuas) and cats. Proven to fit a 14 lb Shihtzu comfortably. Simple tool-free assembly in under 5 minutes. Includes internal leash lock and safety zippers to prevent escapes.
- ↓↓【Something You Need To Read Before Purchase】→→ 1.Recommended size :【extra-small dog/small cat shorter than 16'',weight is up to 5 lbs】Please measure your pet length firstly,length is more important than weight to judge a pet can be carried or not. Make sure your pet is shorter than 16 inches. This carrier is designed specially for frontier /allegiant airlines,the height is very low(only 8 inches), SO NOT Recommend for a oversize pet.
- 2.【Designed for frontier/allegiant/breeze airlines】 size of carrier is 17''(L) x 13''(W) x 8''(H),it can be putted under the seat in cabin,it conform to the requirement of frontier / Allegiant airlines (18''x14''x8''),it also is Southwest / Spirit approved,but it is not the first choice for these airlines(9'' height carrier is a better choice),IT IS NOT APPROVED BY DELTA\UNITED AMERICAN ALASKA (13'' is more wider ).
- 3.【Expandable Top provide more space for your pet】 This carrier have a 3'' height expandable top(fully extended),you can fold it down to put carrier under seat in cabin and pull it up to giving more space for pet in other travel time.Not like other similar products, expandable top in our product have a 5 sides meshes to provide better Air mobility and 360 degrees visual field for your pet.
- 4.【Stable and safety】 2 hard metal frames in 2 sides to keep stable and prevent collapse(frames only has a little elasticity to keep shape well,them can not bend to a lot lower height),a hard wood padding to prevent bottom sinking. Double zipper lock,anti-scratch mesh and a tether in carrier to prevent pet escaping.
- 5.【A carrier for multi use,match your needs in travel】 this carrier can be used for other airlines that have a more than 8 inches height under-seat,it also work in a short distance car trip,like vet visit.Adjustable shoulder strap make carrying easily,2 pockets with zippers for storing objects for your pet in travel,soft padding in bottom is washable.A adaptive training(load your pet into carrier and keep it away from anxiety) for your pet before travel is important.
The Ultimate Buying Guide: Flying Fido or Fluffy on Allegiant
Traveling with your furry friend can be exciting! If you plan to take your pet in the cabin with Allegiant Air, you need the right carrier. This guide helps you find the perfect fit so your trip goes smoothly.
Key Features to Look For
When shopping for an Allegiant in-cabin pet carrier, certain features matter most.
- Size Compliance: This is the most critical factor. Allegiant has strict size limits for under-seat carriers. Make sure the carrier fits comfortably under the seat directly in front of you. Check Allegiant’s current website for the exact dimensions, as they can change.
- Ventilation: Your pet needs fresh air. Look for carriers with mesh panels on at least three sides. Good airflow keeps your pet cool and calm.
- Security and Zippers: Zippers must be strong. Look for carriers with locking mechanisms or loops where you can attach small padlocks or zip ties. This stops clever pets from escaping.
- Comfort Padding: A soft, removable bottom pad makes the ride nicer for your pet. It also helps absorb minor accidents.
- Water Resistance: A slightly water-resistant material is helpful in case of spills or leaks.
Important Materials
The material affects durability, weight, and how easily you can clean the carrier.
Most in-cabin carriers are either soft-sided or hard-sided, though soft-sided is usually preferred for under-seat fitting.
- Soft-Sided (Fabric): These are typically made from durable polyester or nylon. Soft sides are great because they can slightly compress if needed to squeeze under the seat. They are also lighter, which helps you meet weight restrictions easily.
- Hard-Sided (Plastic): While durable, hard carriers rarely fit the specific under-seat dimensions required by airlines like Allegiant. We suggest avoiding these for in-cabin travel.
Factors That Improve or Reduce Quality
Quality is determined by how well the carrier performs under travel stress.
What makes a carrier better? A carrier scores high marks if it uses heavy-duty stitching and strong zippers. Carriers that stand up straight, even when empty, usually offer better protection. Carriers designed specifically with airline travel in mind often feature a top-loading option, which makes getting your pet in and out easier at the security checkpoint.
What lowers the quality? Flimsy frames or thin mesh windows are red flags. If the carrier collapses when you lift it, it won’t protect your pet well. Also, carriers that are too bulky, even if technically within the size limit, can make your trip uncomfortable because you lose legroom.
User Experience and Use Cases
Think about your actual travel day. How will you carry this carrier through the airport?
A good carrier will have comfortable, padded shoulder straps and sturdy handles. You need to be able to manage the carrier, your personal bag, and your ticket easily. For short flights, comfort is key. For longer layovers, look for carriers that have an outside pocket for storing necessary documents or treats.
The best user experience involves a pet that feels secure and has enough room to turn around slightly, but not so much room that they slide around during turbulence. Always test the carrier at home first! Let your pet spend time inside before the travel day.
10 FAQs About Allegiant Pet Carriers
Q: What is the exact size limit for Allegiant in-cabin carriers?
A: Allegiant requires the carrier to fit completely under the seat in front of you. While exact measurements can change, standard soft-sided carriers around 17″ x 12″ x 7.5″ often work. Always confirm the current official dimensions on the Allegiant website before buying.
Q: Does Allegiant charge a fee for bringing a pet in the cabin?
A: Yes, Allegiant charges a pet fee each way for carrying a pet in the cabin. This fee is usually non-refundable.
Q: Can I use a rolling pet carrier for Allegiant?
A: Generally, no. Rolling carriers are usually too rigid and tall to fit under the seat. Soft-sided carriers that can compress are strongly recommended.
Q: How many pets can travel per flight?
A: Allegiant limits the number of pets allowed per cabin. You must book your pet’s spot when you book your ticket, as space is limited.
Q: Must the pet be fully inside the carrier during the flight?
A: Yes. Your pet must remain completely inside the carrier, with the door zipped or fastened shut, for the entire duration of the flight.
Q: What kind of padding should the carrier bottom have?
A: Look for thick, absorbent, and removable padding. This helps keep your pet comfortable and makes cleanup simple if there is an accident.
Q: Are there specific color requirements for the carrier?
A: Allegiant does not specify color requirements. However, lighter colors might reflect heat better if you are waiting on a sunny tarmac.
Q: Can I bring a separate water bowl for my pet?
A: You should not bring a separate bowl inside the carrier. Many quality carriers include a small, leak-proof water dish that attaches to the mesh, or you can bring a collapsible travel bowl that fits in an outside pocket.
Q: What happens if my carrier is slightly too big?
A: If the gate agent determines your carrier will not fit under the seat, they may require you to check the pet as cargo or deny boarding for the pet. It is always better to be slightly smaller than the maximum size.
Q: Should I use a locking mechanism on the zippers?
A: It is highly recommended. Even if you do not use a padlock, using a small carabiner clip or zip tie to secure the two zipper pulls together adds an extra layer of safety against accidental opening.