Best 40 × 30 × 20 cm bags
Real suitcases and backpacks that fit inside 40 × 30 × 20 cm — measured with wheels and handles, each showing the tightest margin so you know how safe it is. This size is free cabin baggage on 107 airlines.
Safe picks — room to spare
Tight fits — measure carefully
Prices, availability and product specifications can change. Fit is calculated from dimensions; see our methodology.
Free cabin baggage on
Copa Airlines
British Airways
KLM
Southwest Airlines
Air France
Iberia
Qatar Airways
ANA (All Nippon)FAQ
What are the best 40 × 30 × 20 cm bags?+
We list 9 bags that fit within 40 × 30 × 20 cm, led by tomtoc, Gonex, Aerolite, Fjällräven. The safest picks leave a clear margin on every side so they still fit when packed full.
Which airlines does a 40 × 30 × 20 cm bag fit for free?+
A 40 × 30 × 20 cm bag is free cabin baggage on 107 airlines, including Copa Airlines, Jet2, British Airways, KLM.
Should I choose a bag smaller than the limit?+
Yes — a little smaller is safer. Manufacturer sizes can exclude wheels or handles, and a bag bulges when full. We mark any bag within 0.5 cm of the limit as “tight” so you can pick one with room to spare.