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Travel Bags

Research-based comparisons of under-seat personal-item bags, weekenders and carry-on travel backpacks, built from official specs and airline size charts. Hiking and backpacking packs belong on PickedOutdoors. We have not used these bags ourselves, and we never invent scores.

Buying guides

Buying guide

The Best Weekender Bag for a Short Trip

If you want more listed capacity for less money, BÉIS The Weekender is $118 and 42 L — but its official 15.75 in height and 9.84 in depth sit over United’s published 9 × 14 × 22 in carry-on box, while they sit inside Frontier’s 24 × 16 × 10 in carry-on box. Away The Weekender is $248 and 38 L, closer to United’s published box (9.4 in vs 9 in on one side), and Away’s own FAQ says it is a carry-on, not a personal item.

Buying guide

The Best Personal Item Bag for Holiday Flights

If you need a bag that sits inside Frontier’s published 18 × 14 × 8 in personal-item box (handles, wheels and straps included), the official dimensions for Away’s Everywhere Bag and the Monos Metro Duffel do. BÉIS’s Mini Weekender lists more capacity, but its 15.75 in height is over Frontier’s published 14 in limit — and all three official sizes sit over United’s tighter 9 × 10 × 17 in box on at least one side.

Comparisons

Comparison

Aer Travel Pack 4 vs Peak Design (2026)

Aer’s Travel Pack 4 35L is a 35 L, 3.90 lb pack listed at $259, with official dimensions of 21.5 × 13.5 × 9 inches; the official page was sold out on November 10, 2026. Peak Design’s Travel Backpack 45L is $299.95 and 4.5 lb, with a written 35 L “max carry-on” standard size of 22 × 13 × 9.5 inches that expands to 45 L and 11 inches deep. Peak’s 30L, at $249.95 and 3.17 lb, is the closer official fit to United’s 9 × 14 × 22 in box. We compared those written specs, not a packing test.

Explainers

Guide

Weekender vs Carry-On (2026)

Choose a weekender duffel if you want a lighter soft bag you can shoulder or stack on a roller — Away’s Weekender is $248, 38 L, and 3.8 lb with the strap, but Away’s own FAQ says it is not a personal item and is too large under a seat when fully packed. Choose a wheeled carry-on if you want a structured spinner with a built-in lock and a suitcase warranty; Away’s Carry-On is $275 and about twice the empty weight, with official size figures that conflict across Away’s own pages. Confirm the packed bag in a sizer. United’s published limit is 9 × 14 × 22 inches including handles and wheels.