Last checked: July 2026 — sourced against TSA “What Can I Bring?” and FAA PackSafe. Rules change; re-verify before you fly.
The verdict, in one line
Sunscreen counts as a liquid — lotion, gel, cream and spray all fall under the rule — so in your carry-on each container must be 3.4 oz (100 ml) or smaller and fit in your quart bag. In your checked bag full-size and beach-size bottles are fine, with a generous aerosol ceiling. The single most useful caveat: a solid sunscreen stick or powder is not a liquid, so it skips 3-1-1 entirely and is the easiest thing to carry on.
Carry-on: lotion and spray both count
People assume “liquids” means only pourable stuff, but TSA groups liquids, aerosols, gels, creams and pastes together. Sunscreen hits several of those at once. Under 3-1-1:
- Each container — lotion tube, gel bottle or aerosol can — must be 3.4 oz (100 ml) or less by its stated size.
- All of them share one clear quart-size bag.
- One bag per passenger, out in the bin at the checkpoint.
That standard beach bottle of SPF 50 is usually 6–8 oz, so it will not pass in your carry-on. Buy or decant a travel size of 3 oz or less, or move it to checked. A spray/aerosol sunscreen is allowed in the cabin only if the can is 3.4 oz or smaller and fits the quart bag — travel-size cans exist, but most beach cans are far bigger.
The aerosol nuance most guides skip
Aerosol sunscreen is the format with the extra rules, because a pressurized can is regulated both as a carry-on liquid and as a hazardous article in checked baggage. Two things to know:
- In the cabin the can must be 3.4 oz or less like any other liquid. There is no aerosol-only exception for sunscreen.
- In checked bags it falls under the FAA’s toiletry-aerosol limits below, and the release button must be capped so it can’t discharge under pressure.
If you only need spray coverage for a beach trip, the simplest move is to pack the big can in your checked bag and keep a small stick or a 3 oz lotion in your carry-on for the flight and first day.
Checked bag: the FAA ceiling
Checked luggage has no 3.4 oz limit, so big lotion bottles and beach-size cans are fine. Aerosols, though, are capped by FAA PackSafe’s toiletry limits — per passenger, across all aerosol toiletries combined:
| Limit | Per container | Total per passenger |
|---|---|---|
| Volume | 17 fl oz (500 ml) | 68 fl oz (2 L) |
| Weight | 18 oz (0.5 kg) | 70 oz (2 kg) |
Non-aerosol lotion has no FAA size cap at all in checked bags — only the aerosol cans count toward that 68 fl oz total, along with any other aerosol toiletries you’re packing. Cap every nozzle and bag the bottles against leaks; SPF that bursts across your clothes is a bad start to a vacation.
The airline & international layer
US carriers add nothing beyond TSA/FAA for sunscreen, though all prohibit spraying aerosols in the cabin. Traveling abroad, the carry-on rule is essentially the same 100 ml-per-container standard across the UK, EU, Australia, Canada and most of Asia. A few UK/EU airports with newer CT scanners have loosened liquid limits, but coverage is patchy — pack to the 100 ml rule unless your specific departure airport publishes otherwise. If you’re headed somewhere sunny and want a big bottle, the reliable answer everywhere is: large sunscreen in checked, travel size or a stick in carry-on.
The checkpoint officer always has the final say. Figures last checked July 2026 — re-verify before you fly.
Sources & verification
Every claim on this page was checked against the primary sources below and last verified July 2026.
- TSA — Sunscreen is treated as a liquid; carry-on containers limited to 3.4 oz / 100 ml, solid sticks exempt, full sizes allowed in checked bags. tsa.gov/…/sunscreen
- TSA — The 3-1-1 rule: each liquid, gel, or aerosol container 3.4 oz / 100 ml or less, in one quart-size bag, one bag per passenger. tsa.gov/…/liquids-aerosols-gels-rule
- FAA — Checked aerosol-toiletry limits: 17 fl oz (500 ml) per container and 68 fl oz (2 L) total per passenger, nozzle capped against release. faa.gov/hazmat/packsafe/medicinal-toiletry-articles
Related rules: The TSA 3-1-1 liquids rule · Perfume · Shaving cream · Deodorant
FAQ
Can I bring spray sunscreen in my carry-on?
Only if the can is 3.4 oz (100 ml) or smaller and fits in your quart bag. Most beach-size spray cans are larger and must go in checked luggage instead.
Is a big beach bottle allowed in carry-on?
No. Standard 6–8 oz bottles exceed the 3.4 oz carry-on limit. Decant into a travel bottle, buy a travel size, or pack the big bottle in your checked bag.
Do sunscreen sticks count as a liquid?
No. Solid sunscreen sticks and powders are not liquids, so they’re exempt from 3-1-1 and can go in your carry-on without the quart bag.
How much sunscreen can I check?
Non-aerosol lotion has no FAA size limit in checked bags. Aerosol cans are capped at 17 fl oz each and 68 fl oz total per passenger, with nozzles protected against accidental release.