Top 10 Best 18x14x8 in 2026

Last Updated - 6/12/2026

🏆Best Choice

Narwey

For Spirit Airlines Personal Item Bag 18x14x8 Foldable Travel Duffel Bag Tote Carry on Luggage Duffle Overnight for Women and Men (1112 Thick Series Black)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•THICK SERIES. Pay a bit little more, you would get a personal item bag much more durable and thicker than similar products, no need to worry any ripping or break during trips. No extra shoulder strap is included for model 1112. If you prefer to have a strap, pls refer to model 3112 or 1109
•SAVE YOUR CARRY ON CHARGES -【Model：T1112】Bag size 18 x 13 x 6.3 inch fits personal item size 18 x 14 x 8 inch of Spirit Airlines & Frontier, which can be placed under seat and no need to pay carry-on
•HOLD SHAPE. Still worried it is too collapsed? Upgraded with superior material and construction, the bag can hold its shape when empty. Feel comfortable when carrying
•EASY CARRYING - Its external storage pocket offers quick access to small items. The pouch as a strap enables the duffel to fit over the handle of common suitcase 18 20 24 26 28 32 inch for easy carrying.
•VERSATILE - Easily held all your gym or travel items, ideal for garment bag, sports, gym use, yoga, travel, weekend shopping, overnight, camping and picnic

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$9.99

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Aviditi

AVIDITI 18 x 14 x 8 Corrugated Cardboard Boxes, Medium 18"L x 14"W x 8"H, Pack of 20 | Shipping, Packaging, Moving, Storage Box for Home or Business, Strong Wholesale Bulk Boxes

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•DIMENSIONS: Inside dimensions measure 18-inches (length) x 14-inches (width) x 8-inches (height) Carton capacity is approximately 1 167 cubic feet
•APPLICATIONS: Aviditi corrugated boxes are great for packing, shipping, moving, storage, crafting and much more!
•TOP QUALITY: These boxes are the industry standard and proudly made in the United States Aviditi corrugated boxes are easy to assemble and fold together in seconds
•MATERIAL & STRENGTH: Standard strength industrial corrugated boxes are manufactured from 200#/ECT-32 single wall, c-flute kraft corrugated Estimated weight capacity is 65 lbs (This is only a guide, weight must be distributed evenly)
•PACKAGING: Package includes 20 boxes and ship flat to save on storage, space and shipping Corrugated boxes are reusable and recyclable

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$49.80

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ECOHUB

ECOHUB Travel Backpack 18x14x8 Spirit Airlines Personal Item Bag Carry On Backpack 13 Pockets Work Casual Daypack for Men Women Airline Approved Water Resistant Gym Backpack with Charging Port, Black

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•【AVOIDING BAGGAGE CHARGES ON FLIGHT】: ECOHUB Airplane travel backpack have the perfectly sized to avoid baggage fees. The underseat carry on bag measures 18x13x7.8 inch and has a capacity of 30L, with a weight of 1.6lb. Suitable for all major airlines like spirit, frontier, easyjet.（PATENT PENDING）
•【Roomy CAPACITY】: The carry on Backpack opened up like a suitcase which makes it way easier to pack. The spacious main compartment with two thoughtfully-designed pockets that help your contents more organized and elastic straps are perfect for bulky items like shoes and clothes. Side compression straps adjust the travel bag space so you can pack more.
•【MULTIPLE COMPARTMENTS & POCKETS】: Roomy front organizational pockets can hold important items such as ipad and notebooks, pens, passports. The key chain can secure and locate your keys stress-free. A top access pocket so you can grab your travel documents and glasses quickly. The hidden back pocket can hold valuable items such as phone, wallet and so on. Quick access zipper pocket on front panel for toiletry bag security check.
•【READY TO TRAVEL】: Built with a USB charging port, the smart backpack will keep your phone fully powered when you travel. Perfect for both short trips and long journeys, the thick and soft shoulder straps with foam padding. The expandable water bottle pocket is very convenient for travelers and hikers. The side handle allows us to easily carry it as a holdall. Looping the luggage strap for easy to move with your suitcase.
•【SUSTAINABLE & GUARANTEE】: Our carry on bag is made from at least 50% recycled materials, with fabric and lining crafted from 34 recycled PET plastic bottles. The water-resistant, lightweight fabric, combined with heavy-duty SBS zippers and reinforced ripstop stitching, ensure durability for any adventure. If you have any concerns, reach out through your order. (Patent Pending)

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$30.79

$42.99

-28%

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Sowaovut

Sowaovut Travel Laptop Backpack, Extra Large High School College Backpacks, Flight Approved Daypack Business Bag Fit 17.3 inch Laptop for Men Women (Black)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•AFTER SALES SERVICE : We solemnly promise that within one year of receiving this product, if any quality defects occur during normal use, you only need to take a photo of the defective product and contact us. We will reply with a solution to the problem within 24 hours, or send you a new identical product for free to replace the defective product
•STURFY AND LIGHTWEIGHT, SUITABLE FOR TRAVEL: The travel backpack is made of lightweight and sturdy polyester material, with a zipper that is easy to close and open. This portable backpack meets the personal carry on standards of airlines and can be installed under the overhead luggage rack or seat. You can easily install travel equipment for 2-4 days, equivalent to the capacity of an 18 inch suitcase, making it a good choice for weekend vacations and business trips
•CONVENIENT DESIGN: This portable travel backpack is designed with thick padded shoulder straps and a hidden anti-theft pocket on the back for storing valuable items such as wallets. There is a pocket on the left side for placing water bottles, and two handles on the top and right sides, designed to lift the backpack from multiple angles, providing you with a more flexible carrying experience
•EASY TO ORGANIZE: The main compartment of the luggage backpack can be opened 180 degrees for easy access to items. It has independent mesh pockets and spacious space to store different travel equipment. The internal compression elastic band can effectively secure items. The front compartment is equipped with various pockets for storing stationery, books, pens, and other small items, while the rear compartment has a separate computer compartment for easy access
•REDUCE PRESSURE FEATURE: The luggage backpack is equipped with an adjustable shoulder strap length device, 4 external side compression buckles, and a breathable back panel, which can effectively relieve pressure on the shoulders and neck, as well as reduce the pressure on the zipper. Thickened sponge handle and shoulder straps make carrying and gripping the bag more comfortable(This item is not intended for use by people 12 years old and under)

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$24.99

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Taygeer

Taygeer Travel Backpack for Women, Carry On Backpack with USB Charging Port & Shoe Pouch, TSA 15.6inch Laptop Mochila Flight Approved, Nurse Bag Casual Daypack for Weekender Business Hiking, Pink

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Convenient Usb Port: Large carry on backpack for women with built in USB charger outside and built in charging cable inside, this suitcase school backpack for travel offers you a more convenient way to charge your phone while walking. Please note that travel laptop backpack for shcool women doesn't power itself and does not include a powerbank and cable, usb charging port only offers easy access to charge
•Roomy Capacity & Multi-Pocket: Dimensions 16.8*11*7 inch, Light Weight 0.79 Kg(1.74 lb), has 3 main large compartments and 9 allocated inner and side pockets. Makes your item organized and easier to find. College laptop bookbag backpack with laptop compartment holds a 15.6 inch laptop and a 12.9 iPad, pink travel backpack providing a dedicated space for your pen, textbooks, wallet, clothes, shoes, bottle and other travel essentials. At the same time,travel backpack carry on is water resistant
•Flight Approved Laptop Backpacks: 180 degree zipper closure helps you pass through the security check quickly. Travel essentials for women fits overhead and under the seat. Carry on backpacks for traveling on airplane also meets airline carry-on requirements, applicable for airlines such as Easy Jet, Spirit, Jet Blue, Frontier, United
•Be Handbag or Backpack: The womens travel backpack for airplane designed with padded adjustable shoulder strapsand 2 padded handles make it easy to transform this weekender backpack for school from hand bag to backpack. Luggage Strap of work bookbag for women provides a more flexible carrying experience. Two padded grab handles are set on top and side of the personal item travel backpack. Note: when used as a handbag, you can thread the shoulder strap through the luggage strap for convenience
•Widely Used: Hybrid Conversion(School Bag/Duffle Bag/Bookbag/Travel Bag/Teacher Backpack/Nurse Backpack). Large backpack bookbag for women can be used in several different ways, served as daily college backpack, traveling backpack for women work bag. Carry on luggage backpack is perfect for weekender, travel, college, daily use, and is also the best birthday gift for women daughter. The backpack purse for women can be cute school backpack for girl, perfect for back to school gift for girlfriend

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$17.99

$29.89

-40%

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WANDF

WANDF Travel Backpack For Spirit Airlines Personal Item Bag 18x14x8 with Wet Pocket, 17 Inch Laptop Backpack for Men Women（Grey）

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•【AIRLINE APPROVED CARRY-ON LUGGAGE】The WANDF Carry-On Backpack measures 18x13.5x8 inches, making it a perfect fit for the personal item size requirement of 18 x 14 x 8 inches for Spirit Airlines and Frontier Airlines. This allows you to place it under the seat to avoid oversize charges. Additionally, it is designed to open and fold 180 degrees like a suitcase, making it easy to pass through airport security quickly.
•【WET POCKET & LAPTOP COMPARTMENT】The wet pocket for toiletries, made from high-density waterproof material, can help you store wet or damp items such as toothbrushes, razors, and shampoo bottles. The separate laptop compartment can accommodate laptops up to 17 inches, perfect for your work or study needs in companies and universities.
•【MULTI-POCKET】The spacious main compartment features elastic straps, ideal for bulky items like shoes and clothes. The middle main pocket has various compartments for items such as books, pens, and headphones, providing easy and quick access. Additionally, this bag is equipped with a front pocket and side zipper pockets for storing travel essentials that can be quickly accessed. It also includes a hidden anti-theft pocket on the back to protect your valuables from theft.
•【EASY TO CARRY】The travel backpack is designed with sturdy padded straps and an air-mesh ventilated back panel to ensure comfortable wear for extended periods without fatigue or discomfort. It also includes two padded grab handles and a detachable strap on the back that can secure the shoulder straps horizontally, making it convenient for hand-carrying. Furthermore, it can function as a luggage sleeve, allowing easy placement on top of a suitcase for effortless mobility.
•【CONVENIENT DESIGN】Equipped with a charging port, it's convenient for you to charge your electronic devices while on the move. The unique toothed zipper and four external compression straps ensure secure fastening even when you're on the move, protecting your belongings from accidental dropping during your travels.(Patent Pending.)

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$35.99

$39.99

-10%

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VECAVE

Spirit Travel Duffel - 18x14x8 Inches Weekender Overnight Bag with Shoes Compartment, Trolley Sleeve, Carry On for Airplanes, Sport Tote Gym Bag - Green

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•【LARGE CAPACITY AND MULTIPLE POCKETS】-It has a capacity of 32 L and can hold 6 to 8 pieces of summer clothes,cosmetics,toiletries,etc;This travel bag has 9 pockets, which ensure you have a place for all thing
•【AS AIRLINES PERSONAL ITEM】-Size: 14″x18″x8″,save your carry-on charces;It fit perfectly under the seat on the flight down and in the overhead compartment. And the travel bag can attaches to suitcase trolley,free your hands to enjoy your trip
•【DRY WET SEPARATED】-Built-in waterproof wet pocket. The high density water resistant material can help you to separate dry items and wet items,if you have wet clothes or towel,you can put those in this duffel bag
•【WEEKENDER BAG WITH SHOE COMPARTMENT】-A separate shoe compartment can help you carry and keep your shoes better in your travel bag,even if it is dirty and the other objects still won't get stained
•【VERSATILE STYLE】-Perfect for travel,overnight stays,weekend trips,business trips,gym,sports activity,or other daily use. Suitable for gym sport bag, carry on bag,travel bag,duffel bag, weekender bag,overnight bag,personal item bag,etc

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$32.99

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Lossga

Lossga for Spirit Airlines Personal Item Bag 18x14x8 Inches Travel Bag Mens Travel Backpack for Women Fit Up to 17 inch laptop Backpack With Usb Charging Port Carry on Flight Approved

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•【Travel Backpack Carry on Flight Approved】Our Backpack Dimensions：17.5x12.4x7.9 inches. Suitable for most airlines requirement as personal item size 18 x 14 x 8 inches travel bag. Avoiding baggage charges on flight.Fit for Spirit,Frontier,Delta,Alaska,United Airlines and other airlines
•【Comfortable Ergonomic Design】This personal item backpack used widened and thickened sponge shoulder straps, which has good air permeability and comfortable fit. Comfort and lightweight design makes it ideal for both travel and daily use
•【Multiple Compartments & Pockets】This lightweight travel backpack, 28L capacity, Suitable for 3-4 days trip. Multi Pockets backpack with laptop compartment, dry and wet separation and more pockets to stay your trip organized
•【Anti-theft Pocket & Luggage Strap】 Anti theft backpack design an anti theft zipper pocket to keep your valuables safe and secure. also this backpack with luggage strap to attach the backpack to your suitcase
•【Convenient USB Port】Backpack with usb charging port makes it easier to charge your phone or other devices in anytime, anywhere while traveling.Also with a large side pocket to put your water bottle or sunglasses case, easy to take

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$29.99

$34.99

-14%

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Carbrea

Carbrea Personal Item Bag for Airlines - Foldable Travel Bag 18x14x8 Small Duffle Bag for Spirit Frontier Weekender Overnight - Black

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Save your carry on charges: Size 17.7x 12.4 x 7 inches, our small duffle bag fits perfectly for personal item size 18x14x8 inches of Spirit and Frontier Airlines, which do not need to for a carry-on, and the personal item bag can be placed under the airplane seat or overhead bin
•Foldable duffle bag & Lightweight: The packable duffle bag for travel is made of quality polyester material, weighing only 5.3 ounces, this duffel bag is lightweight and durable. Besides, the small travel bag can be folded up with easy steps to save your storage space when non-use
•25L capacity: The capacity of this personal item bag for airlines is 25L, which can hold your clothes, toiletries, or small travel items, with 2 mesh side pockets for umbrellas and water bottles. Suitable for men and women
•Easy to carry: The duffle bag for travel has a trolley sleeve that can slide over the luggage handle to carry more conveniently, and the front pocket of the under seat carry on bag offers quick access to small items
•Multi-purpose: Carbrea duffle bag can be used as an 18x14x8 inches travel bag, garment bag, carry-on bag, weekender bag, overnight bag, beach tote bag, and souvenir bag. Perfect for travel, business trips, vacation, sports, gym, camping, and daily storage use

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$5.99

$8.99

-33%

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coofay

coofay Travel Backpack Carry on Flight Approved Mochila De Viaje Personal Item Travel Bag Backpacks for Travel Backpacks for Men Women Carry on Backpack for Airplanes 18x14x8 Inches Travel Bag

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•【LARGE AND MULTIFUNCTIONAL DESIGN】The daily clothes pocket can hold 4-6 pieces of thin tops or pants, which can meet the needs of short trips or business trips for 2-3 days; it can also be used to store college stationery such as books, and the separate laptop compartment can accommodate a maximum of 15.6” laptop for your work or study needs in companies and universities
•【SEPARATE SHOES COMPARTMENT AND WET POCKET】 The shoes compartment can hold a pair of slippers or low-top sneakers, allowing you to switch freely in different states of travel, business trips and outdoor sports; the wet pocket is made of high-density waterproof material, which can be used with to store wet items, making your stay in a hotel or apartment more convenient
•【APPROVED BY MOST FLIGHTS】 External dimensions are 16.5×11.8×5.9 inches (H×W×D), 2lbs weight (manual measurement, for reference only, subject to actual measurement). This backpack meets the boarding requirements and can be opened and folded 180 degrees like a suitcase, which can quickly pass through airport security and is specially designed for plane travel
•【COMFORT AND SAFETY】 Comfortable airflow back design, thick and soft multi-panel ventilated padding provides back support. Breathable, adjustable shoulder straps to relieve shoulder pressure. This backpack can be slipped on the trolley of the suitcase to make traveling easier
•【SUITABLE FOR MANY OCCASIONS】 The casual backpack is suitable for college, commuting, business, work, hiking, short-term travel, weekend vacation and other activities. If you have any questions, you can contact us, we will be happy to solve your problems

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$25.49

$29.99

-15%

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