Carry-On Stroller Size Guide

The table

Read it by the smallest axis

An overhead bin is shallow, wide and curved at the top. A folded stroller goes in lying on its side, so the number that decides whether the lid closes is the stroller’s thickness — not its length and not its volume. United’s published depth limit is 9 in (united.com, read 2026-09-27).

On that basis: the YOYO³ has nearly two inches of margin, the Libelle just over an inch, the Pockit+ about an inch, the Joolz almost none, and the MINU V3 at 10 in is over. That is the whole guide. Our overhead bin roundup ranks the same strollers with the trade-offs, and our gb Pockit+ All-City review sets out the four different folded sizes published for the thinnest stroller in that table.

What each airline publishes

American is the clearest: you may carry on a fully collapsible stroller if it is under 20 lb and fits in an overhead bin; otherwise strollers are checked at the gate before boarding and collected at the gate afterwards, free of charge when traveling with a child (aa.com, read 2026-09-27).

United publishes a 22 x 14 x 9 in carry-on maximum and states that in addition to one carry-on and one personal item you may bring additional items including FAA-approved child restraint systems (united.com, read 2026-09-27). Its family-travel page renders its detail with JavaScript and we could not read it — so we are not reporting a United stroller-specific rule we could not verify.

Southwest approaches it from the other direction: one stroller and one car seat free per ticketed customer, checkable at the curb, ticket counter or gate, with gate-checked items claimed at baggage claim at the final destination (southwest.com, read 2026-09-27). Note the detail about baggage claim — it means a gate-checked stroller on Southwest may not be waiting for you at the arrival gate.

Three practical notes

Published dimensions exclude the carry bag. Add a little in every axis for it.

Board early if you can. Bin space is finite and a stroller needs a lot of it. Family pre-boarding is the difference between using a bin and being told to gate-check.

Know your fold. Practice until it is one motion. A stroller you cannot fold quickly at a gate ends up gate-checked regardless of its dimensions. Our gate-check guide covers doing that without damage.

Three more pages use these same folded figures for different decisions. YOYO vs UPPAbaby MINU is the head-to-head on 7.1 in against 10 in of folded depth, best strollers for Disney checks them against a park’s published size rule instead of a bin, and is the Doona worth it covers the one product whose 17.4 x 26 x 22.4 in fold is a car seat rather than a stroller. If you have bought a seat for the child, CARES harness vs car seat is what goes in it.

Two of these folds are close enough that the dimensions alone decide it. Cybex Libelle vs Stokke YOYO runs the arithmetic: 7.8 in of depth in a smaller overall package against 7.1 in of depth in a package about a third bigger, with the brands’ own published figures for both.