Yes, with limits. Aerosol dry shampoo must be 3.4 oz (100 ml) or less in your carry-on quart bag. In checked bags each can can be up to 18 oz (500 ml) with the nozzle capped. Powder dry shampoo is a powder, not a liquid.
TSA allows aerosol dry shampoo in carry-on bags in cans of 3.4 oz (100 ml) or less, inside your quart-size bag. Loose powder dry shampoo is screened as a powder: containers over 12 oz (350 ml) must go in a separate bin and may get extra screening.
Aerosol dry shampoo is allowed in checked bags under FAA toiletry limits: each can no more than 0.5 kg (18 oz) or 500 ml (17 fl oz), a total of 2 kg (70 oz) or 2 L (68 fl oz) per person, and the nozzle capped.
Checked against official TSA, FAA and government pages on . These are US rules unless we say otherwise; the TSA officer at the checkpoint makes the final call.
The rules in numbers
- Aerosol in carry-on: 3.4 oz (100 ml) per can, in your quart-size bag
- Powder in carry-on: over 12 oz (350 ml) goes in a separate X-ray bin
- Checked aerosol: max 0.5 kg (18 oz) / 500 ml (17 fl oz) per can, nozzle capped
- Checked total for restricted toiletries and aerosols: 2 kg (70 oz) / 2 L (68 fl oz) per person
Packing tips
- Switching to a powder dry shampoo in a small shaker frees up space in your liquids bag.
- Check the can size before packing: anything over 3.4 oz (100 ml) belongs in your checked bag, where cans up to 500 ml are fine.
Outside the US
- UKSprays count as liquids on GOV.UK, capped at 100 ml per container at most UK airports (some allow up to 2 litres). Source
- EUAerosols must be 100 ml or less per container in one transparent bag of up to 1 litre. Source
Flying somewhere else? See the rules for the UK, EU, Canada, Australia, New Zealand, Singapore and Japan.
Questions people ask
Can I bring dry shampoo on a plane?
Yes. Aerosol cans must be 3.4 oz (100 ml) or less in a carry-on, or up to 18 oz (500 ml) with a capped nozzle in checked bags.
Does powder dry shampoo count as a liquid?
No, it is screened as a powder; only containers over 12 oz (350 ml) need a separate bin at the checkpoint.