Personal item vs carry-on
In one line: a personal item is the small bag that fits under the seat in front of you; a carry-on(cabin bag) is the larger one that goes in the overhead bin. The catch is that “small” and “large” mean different sizes on different airlines — and some let you bring both free while others don’t.
| Personal item | Carry-on / cabin bag | |
|---|---|---|
| Where it goes | Under the seat | Overhead bin |
| Typical size | 40×30×15 cm (EU) 45×35×20 cm (US) | 55×40×20 cm (EU) 56×36×23 cm (US) |
| Typical weight | Often unlimited / small | 7–10 kg (EU/Gulf); often unlimited (US) |
| Cost | Usually free | Free on many; paid on low-cost/basic fares |
| Examples | Handbag, laptop bag, small backpack | Trolley case, 40 L travel backpack |
One free bag, or two?
This is where airlines differ most. Based on the 52 airlines we track:
Full-service and most US airlines let you bring both at no cost.
Low-cost carriers: the cabin bag is a paid add-on or needs priority boarding.
Several Gulf and Asian economy fares include a single cabin bag and no separate personal item.
Check your own bag
Enter your bag’s size to see whether it counts as a free personal item, a cabin bag, or is over the limit — on every airline at once.
Check your bag
Enter your bag’s three dimensions to see which airlines it fits.
Avoid a surprise at the gate
- ▸ Measure with wheels, handles and side pockets — that’s what the gate sizer catches.
- ▸ Watch the fare: “Basic” / “Light” fares on legacy airlines can drop the free cabin bag to personal-item-only.
- ▸ A soft bag bulges when packed. Leave a couple of cm of margin, especially on low-cost carriers that measure strictly.
FAQ
Is a backpack a personal item or a carry-on?+
It depends on size, not type. A small backpack (around 40×30×15 cm) that slides under the seat is a personal item. A larger travel backpack (around 55×40×20 cm) counts as a carry-on and must go in the overhead bin.
Can I bring both a personal item and a carry-on for free?+
On 30 of our 52 reviewed airline guides you get both free. On 13 airlines only the personal item is free and the cabin bag is paid or needs priority. On 9 reviewed airlines you only get one bag in economy.
What happens if my personal item is too big?+
If it won’t fit under the seat or in the gate sizer, it’s treated as a carry-on — which may mean a fee, priority boarding, or being placed in the hold. Leave a margin: measure with wheels and handles and check before you fly.
Do wheels and handles count towards the size?+
Yes. Airlines measure the widest points, so wheels and handles are included. Measure your bag the same way.