Can I Bring Bottled Water on a Plane to United Kingdom?
Bottled Water
Restrictions Apply
Special Rules Apply
According to CAA guidelines, carry-on: 3.4oz/100ml limit. Bring empty bottle and fill after security checkpoint.
The final decision rests with the CAA officer on whether an item is allowed through the checkpoint. Official CAA Rules →
Quick Rule
Under 3.4oz (100ml)
Allowed in carry-on
Over 3.4oz (100ml)
Must go in checked bag
Checked Baggage
Allowed in any size
Source: Official CAA Regulations ↗Updated: May 20, 2026
Also known as
water bottlebottled watermineral watersparkling waterflavored water
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