International Flight Carry-On: The Minimal Efficient Kit
Optimized for a 10+ hour flight and a 72-hour layover before your bag catches up (if it does). Nothing in this list is optional except the sleep mask, which is strongly recommended.
Passport + photocopy stored separately
Not in the same pocket. Not even the same bag section.
Laptop + charger with correct adapter
Confirm outlet type for destination before leaving.
Power bank (≤ 100Wh)
Larger ones are banned from cabin on most carriers.
Noise-cancelling headphones
Compression socks
15–20 mmHg. Put them on in the terminal, not the plane.
Sleep mask + foam earplugs
The combo beats noise-cancellation for actual sleep.
Reusable water bottle (empty through security)
One change of clothes vacuum-packed
If your bag is delayed, you have tomorrow covered.
Toothbrush + travel paste
Small toiletries bag (under 1L total)
Any daily medication + 3-day buffer
Printed hotel address in local script
Two pens
For landing card + customs.
Snack you actually like
Airplane food is a coping mechanism; bring backup.
Weight target: 7kg. If you're over, the coat goes on your body.
