Short answer: yes. You can bring sunscreen on a plane in your carry-on as long as each container is 3.4 ounces (100 ml) or less and fits in your one quart-size liquids bag. Larger bottles must go in checked luggage. Below is everything you need to know to get your SPF through airport security.
The TSA 3-1-1 rule for sunscreen
Few things fade a vacation glow faster than watching a TSA officer toss your favorite sunscreen into the bin. The key is the 3-1-1 rule, which covers all liquids, gels, creams, and aerosols in carry-on bags:
- 3.4 ounces (100 ml) or less per container
- 1 clear, quart-size bag
- 1 bag per passenger
To the TSA, nearly every traditional sunscreen, whether a cream, lotion, or gel, counts as a liquid. A common mistake is packing a large 6-ounce bottle that is nearly empty. Security goes by the size printed on the container, not how much is left inside.
Carry-on vs. checked bag
In a carry-on, sunscreen must follow 3-1-1. In a checked bag, you can pack full-size bottles. Aerosol sprays in checked bags should have caps on to prevent accidental discharge, and lotion bottles do best in a zip-top bag in case pressure changes cause leaks.
Sunscreen by type: what to know
Lotions and creams
Reliable staples, but travel-size bottles run out quickly on longer trips. Some travelers decant into leak-proof silicone travel bottles of 3.4 oz or less.
Spray sunscreen
Aerosol sprays are allowed in carry-ons if they meet the size limit and fit in your liquids bag.
Sunscreen sticks
Solid sticks are generally not treated as liquids, so many travelers pack a stick outside their quart bag. Final decisions are always up to the TSA officer at the checkpoint.
Powder sunscreen
Mineral powder sunscreen is handy for face touch-ups and gives a matte finish in humid climates. Powders aren't liquids, though large amounts may need extra screening.
Single-use sunscreen packets
Packets are the simplest way to fly with sunscreen. Each SunSingles SPF 50 packet holds 0.34 fl oz (10 ml), about one-tenth of the TSA limit. Several fit in your quart bag and take up almost no room. There is no half-empty bottle to explain, nothing to leak, and you pack exactly as many applications as your trip needs.
How much sunscreen to pack for a trip
Dermatologists generally recommend about one ounce, roughly a shot glass, to cover the body, reapplied at least every 2 hours and after swimming or sweating. For a beach day, plan on about three applications per person. That means a 5-day beach trip for one person can use more sunscreen than a single 3.4 oz bottle holds, so plan ahead:
- Bring packets for the days you need them, or
- Buy full-size sunscreen at your destination, or
- Pack full-size bottles in your checked bag.
Packing tips for a smooth security line
- Keep your liquids bag at the top of your carry-on so it's easy to pull out.
- Check the printed size on every container before you pack.
- Put sunscreen in a zip-top bag inside checked luggage to contain leaks.
- Heading somewhere with reef-protection laws, like Hawaii or Key West? Choose a formula without oxybenzone and octinoxate, like SunSingles.
TSA sunscreen FAQs
Is sunscreen considered a liquid by the TSA?
Yes. Lotions, creams, gels, and sprays are all treated as liquids and must follow the 3-1-1 rule in carry-on bags.
Can I bring a full-size bottle of sunscreen in my carry-on?
No, not if it is larger than 3.4 oz (100 ml). Put it in your checked bag instead.
Are sunscreen packets allowed in a carry-on?
Yes. Each SunSingles packet is 0.34 fl oz, well under the limit. Place them in your quart-size liquids bag.
Does the same rule apply on international flights?
Most countries use a similar 100 ml limit for carry-on liquids, but rules vary, so check with your airline and departure airport.
Planning a beach trip? Read our beach and pool sunscreen guide, or shop travel sunscreen packets.