JetBlue allows 22 × 14 × 9 in in the overhead bin and 17 × 13 × 8 in under the seat. These are the bags that fit those numbers with the most room left over, ranked.
Links below are Amazon affiliate links — we earn a commission if you buy, at no extra cost to you. No brand paid to appear here or to rank above another.
Exactly 22 × 14 × 9 overall — genuinely legal with the wheels counted, which almost no other "20-inch" bag can claim. Lightest in this group, and it expands two inches.
Built to maximum-legal geometry on purpose. The flat 22 × 14 × 8 box wastes almost no sizer volume, and it’s the only backpack here strictly inside 22 × 14 × 9 on all three axes.
A pound and a half for 45 litres inside a legal carry-on footprint, and it converts to a backpack. Nothing else here comes close on weight.
The reference point for one-bag travel. Suspended mesh backpanel, stowaway harness, a proper hipbelt, clamshell opening.
The most margin of anything here — comfortably inside United’s brutal 17 × 10 × 9 and inside the budget carriers’ 18 × 14 × 8 too. Structured neoprene that holds its shape instead of sagging.
Five ounces. It stuffs into its own pocket, so it costs you almost nothing to carry as insurance — and it clears every personal item limit on this page.
The cheapest bag here we can fully stand behind. Cabin Max publishes 40 × 25 × 20 cm as the external size, and 40 × 25 × 20 works out to exactly the 20 litres they claim — when the arithmetic agrees with the marketing, the numbers are usually real. No wheels, so the usual “does that include the wheels” ambiguity doesn’t apply. Three-year warranty.
Sold as a “17x10x9” bag but the manufacturer’s own spec is 40 × 25 × 20 cm — meaningfully smaller than the limit, which is exactly what you want. Clears United and the budget carriers both, for under thirty dollars.
Want the full list rather than the picks? See every bag that fits JetBlue’s carry-on limit or its personal item limit, or the complete JetBlue baggage guide.
The Travelpro Maxlite 5 Compact Spinner 20" at 22 × 14 × 9 in. Exactly 22 × 14 × 9 overall — genuinely legal with the wheels counted, which almost no other "20-inch" bag can claim. Lightest in this group, and it expands two inches.
22 × 14 × 9 inches including wheels and handles. The personal item limit is 17 × 13 × 8 inches.
Not usually. JetBlue’s limits are close to the industry standard, so most bags sold as carry-ons will fit. Check the depth, which is where bags most often fail.
Manufacturers publish dimensions inconsistently, and a “20-inch” spinner is almost never 20 inches once you count the wheels. Where a brand states dimensions including wheels and handles, that’s the number we use. Where it only publishes the case, we say so on the card. Airlines measure the outside of your bag — wheels, handles, straps and all. Anything marked borderline is down to the gate agent, and remember that a soft bag squashes into a sizer while a hard shell won’t.
As an Amazon Associate we earn from qualifying purchases. Product links on this page are affiliate links and cost you nothing extra.
Limits verified August 2026 against each carrier’s published policy. Airlines change these without notice — always confirm before you fly. Spirit Airlines ceased operations on 2 May 2026 and is no longer listed.
Airline Bag Size Checker v1.0.15 · last updated 2026-08-12