Cons: Aside from the small front pocket, there’s only one main compartment.
Customers are saying: It could fit enough for four days and, though it doesn’t measure up as such, some buyers are saying it does indeed fit under Turkish Airlines seats.
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5. United Airlines underseat carry-on luggage
Airlines suitable for… Wizz Air, easyJet, Flybe, British Airways, United Airlines
Why we love it: Our pick of the bunch for business travel, this Tripp flight bag features one internal and one external zip pocket, in addition to a smart sleeve for sitting atop larger suitcases.
Pros: 15L capacity, recycled polyester eco-friendly makeup and a five year guarantee/warranty comes as standard.
Cons: None of note.
Customers are saying: Men attesting to the fact that it fits a handful of clothes as well as a size 12 pair of shoes at the base – a great sturdy choice for overnight.
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6. Best underseat luggage for Ryanair
**Airlines suitable for…**Wizz Air, easyJet, Flybe, British Airways, United Airlines, Ryanair
Why we love it: Suitable for under Ryanair’s notoriously small airline seats, this Aerolite carry-on bag features a lockable main compartment, as well as an easy access zipped front compartment for passports, boarding passes etc.
Pros: Five year guarantee, 3,500+ five-star reviews and features an over luggage handle sleeve for to ease the weight of carrying multiple bags.
Cons: Advertised as fitting within Lufthansa, Turkish Airlines, KLM and Norwegian airlines’ underseat compartments, though this doesn’t comply with their online instructions – might be worth double checking.
Customers are saying: Ideal for Ryanair, and some buyers have used it for five days worth of clothes.
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7. Best underseat luggage less than 14 inches
Airlines suitable for… All listed above (tight squeeze with Lufthansa!)
Why we love it: With a whole host of gadget features including RFID protected card holders and an in-built USB port power bank, this Nordace travel bag may be small but she is mighty and a great for an overnight or two-day stay.
Pros: Includes a suitcase trolley sleeve, sunglasses protective pocket, retractable key line, anti-theft back pocket and a patented magnet zip lock system. Plus, a bottle sleeve, pen sleeve and an additional eight plus compartments (including one for your laptop/tablet) to store all your travelling essentials.
Cons: Doesn’t zip open the whole way round for easy packing, just 50% of the way.
Customers are saying: “A dream” and a godsend for organising all your bits.
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8. Best underseat tote bag
Airlines suitable for… easyJet, Flybe, British Airways
Why we love it: In our experience, John Lewis is a retailer we can trust so, if they’re repping this Thule bag, then it’s likely something you’ll want to add to your wishlist. Featuring everything from its twill and water-resistant makeup to an adjustable and expandable luggage size, the Spira 20L will become your hand luggage of choice. Not to mention, with its tote bag design, it’s definitely smart enough to use on weekends for a quick getaway to the country, too.