Can you bring sunscreen on a plane?

Yes. TSA's published rule is that sunscreen is allowed in a carry-on bag at 3.4 ounces (100 ml) or less, and allowed in a checked bag in larger sizes within the FAA's aggregate limits. A full-size beach bottle goes in the checked bag; a travel-size tube or a stick goes in the carry-on.

The reason sunscreen trips people up is that it is regulated as a liquid, not as a medicine. There is no medical exemption that gets a 6-ounce bottle through a checkpoint, and buying a replacement at the destination is usually what happens — at resort prices, which is the real cost of getting this wrong.

The carry-on rule

TSA's What Can I Bring entry for sunscreen states that carry-on sunscreen must be "less than or equal to 3.4oz/100 ml allowed" — the same 3-1-1 liquids limit that applies to shampoo and toothpaste. Each container has to fit that size, and all of your liquid containers have to fit in a single quart-sized bag.

That is a per-container limit, not a total: three 3-ounce tubes are fine where one 6-ounce tube is not. For a week in the sun, three ounces of sunscreen is not enough for one adult applying a proper dose, so plan on the checked bag doing the real work.

The checked-bag rule, which also has limits

Sunscreen is permitted in checked baggage, but the FAA caps how much of this class of product one passenger may check. Per TSA's entry, the total must not exceed 2 kg (70 ounces) or 2 L (68 fluid ounces), with no individual container exceeding 0.5 kg (18 ounces) or 500 ml (17 fluid ounces). For a family that is generous; for someone packing sunscreen plus aerosol deodorant plus dry shampoo, it is closer than it sounds, because the limit covers the category rather than sunscreen alone.

Aerosol sunscreen needs its cap on

TSA's entry adds a specific condition for aerosols: "Permitted aerosol release devices (button/nozzle) must be protected by caps or other suitable means to prevent accidental release." A spray can with a missing cap is the single most common reason sunscreen is pulled out of a checked bag. Tape over the nozzle if the cap is gone.

Spray sunscreen also deserves a second thought for a different reason. The dose is harder to control, and it is the format most often under-applied. The best spray sunscreens covers how to use one properly if that is what you are packing.

The format that sidesteps the rule

A sunscreen stick is a solid. TSA's liquids rule covers liquids, gels and aerosols, and the agency's standard guidance is that a TSA officer at the checkpoint makes the final decision on whether any given item may pass. In practice a stick is the most reliable way to have real sun protection in a carry-on without rationing it — and it is the format that gets used at the two-hour mark anyway.

Pack it this way: a full-size SPF 50 lotion in the checked bag for applying before you leave the room, and a stick in the day bag for faces, ears and the back of the neck. The best sunscreen sticks compares them.

Our picks in detail

01 · Best for a carry-on

EltaMD UV Stick Broad Spectrum SPF 50+

EltaMD · Read our EltaMD review

22% transparent zinc at SPF 50+ with 80 minutes of water resistance in a solid stick — the strongest label claims you can realistically carry through a checkpoint.

Actives:

22% transparent zinc oxide

SPF:

SPF 50+

Water resistance:

80 minutes

Reef status:

Zinc only — no oxybenzone, octinoxate or octocrylene

Best for:

Real SPF 50+ protection without the liquids limit

What works

• +Solid format
• +SPF 50+ with 80-minute water resistance
• +Cannot leak in a bag

The trade-off

• −Slow over large areas
• −Small for the price

$40.00 · View on Amazon→

#ad We earn from qualifying purchases · Price as of October 11, 2026

02 · Best for a child's day bag

Thinkbaby Safe Sunscreen Stick SPF 30

Thinkbaby · Read our Thinkbaby review

Non-nano zinc oxide at SPF 30 with 80 minutes of water resistance in a stick — nothing to leak, nothing to sting, and small enough to live in a pocket.

Actives:

Non-nano zinc oxide

SPF:

SPF 30

Water resistance:

80 minutes

Reef status:

Zinc only

Best for:

Reapplying on children away from the room

What works

• +Zinc-only actives
• +80-minute water resistance
• +Does not sting eyes

The trade-off

• −SPF 30 rather than 50
• −Visible white film

$11.99 · View on Amazon→

#ad We earn from qualifying purchases · Price as of October 11, 2026

03 · Best for the checked bag

Thinksport Sunscreen SPF 50+

Thinksport · Read our Thinksport review

20% non-nano zinc at SPF 50+ with 80 minutes of water resistance in a large tube — the bottle that does the actual protecting, packed where the size limit is generous.

Actives:

20% non-nano zinc oxide

SPF:

SPF 50+

Water resistance:

80 minutes

Reef status:

Zinc only — no oxybenzone, octinoxate or octocrylene

Best for:

The full-dose application you do before leaving the room

What works

• +SPF 50+ with maximum water resistance
• +Large size for a whole trip
• +Compliant with every reef restriction

The trade-off

• −Too large for a carry-on
• −Visible cast

$19.97 · View on Amazon→

#ad We earn from qualifying purchases · Price as of October 11, 2026

What else to know before you fly

• Buying at the destination is the expensive fallback. Airport and resort pricing on sunscreen is steep, and the selection is often limited to chemical formulas.
• Check whether your destination restricts filters. Hawaii, Key West, Aruba, Bonaire and Palau restrict particular chemical filters, and a mineral formula travels everywhere without a question. Where reef-safe sunscreen is required.
• Heat in a checked bag is not a problem for a sealed bottle, but an opened one can leak with pressure changes. Bag it.
• Sunscreen expires. Check the date before you pack last year's bottle, because the back of a hot car is the worst possible storage. Does sunscreen expire?
• Flying is also exposure. UV at altitude through a cabin window is higher than at ground level, which is a real argument for the stick in your bag.