In short
- Cabin air is very dry: a study of 26 intercontinental flights measured a mean relative humidity of 6%, with a range of 1% to 27%.
- A later study described humidity on intercontinental flights as low, at 10% to 20%, and found crew rated humidified cabin air as less dry and fresher.
- Nasal strips are a dry adhesive product, not a liquid, so the TSA liquids rule for carry-ons doesn't apply to them; saline sprays over 3.4 ounces belong in checked bags.
- Ear pain on descent comes from the eustachian tube, behind the nose, and a review found being asleep makes it worse because people swallow less.
- A 2015 evidence review found oral pseudoephedrine may prevent flight ear pain in adults with a history of it, while evidence for decongestant nose sprays was lacking.
- No study has tested nasal strips on planes; the evidence for them comes from sleep at home, where they improve nasal breathing but don't help sleep apnea.
Nasal strips are one of the easiest things to bring on a plane. They're small, dry and drug-free, they go through security without fuss, and they can make breathing through your nose feel easier when cabin air dries everything out. What they won't do is stop your ears from hurting on the way down, which is a separate problem with its own fixes.
How dry is the air on a plane?
Air on a plane is far drier than the air in most homes. A 2002 study measured conditions on 26 intercontinental flights and found a mean relative humidity of just 6%, ranging from 1% to 27%. A 2007 study by the same Swedish research group described humidity on intercontinental flights as low, at 10% to 20%.
For a sense of scale, the EPA advises against humidifying a home above 50%. So a long flight can mean hours of breathing air with a small fraction of the moisture you're used to in a bedroom.
That dryness is noticeable. In the 2007 study, crew on flights where a humidifier was switched on rated the cabin air as less dry and fresher than on flights where it was off, even though the humidifier raised relative humidity by only about 10% at the front of the cabin and 3% at the back. If your nose feels tight and dry a few hours into a flight, the air is a likely reason. Our article on dry nose at night covers the same feeling at home.
Do nasal strips help when flying?
Research: limited (what this means)Nasal strips can make it easier to breathe through your nose on a flight, but no study has tested them on planes. The case rests on what strips do on the ground.
That evidence is reasonable for something so simple. In a 2018 randomized, double-blind trial of people with chronic nighttime congestion, a clear strip did better than a placebo strip without springs on some sleep and symptom measures after a week. A 2016 meta-analysis found nasal dilators improve nasal breathing, while also finding they don't improve sleep apnea.
A strip works by lifting the sides of the nose so the front of the airway is a little wider. It doesn't add moisture, and it isn't a treatment for congestion from a cold. What it can do is make nose breathing feel easier while you doze in a seat, which is often the moment your mouth falls open. The best-known strip maker lists travel as one of the uses for its clear strip.
Can you take nasal strips through airport security?
Nasal strips are a dry adhesive product, so the TSA liquids rule doesn't cover them. That rule applies to liquids, aerosols, gels, creams and pastes, which have to be in containers of 3.4 ounces (100 milliliters) or less and fit in a quart-sized bag in your carry-on. TSA's item list doesn't name nasal strips specifically, and it notes that the final decision on any item rests with the officer at the checkpoint, but there's nothing in a strip for the liquids rule to apply to.
If you also pack a saline spray, keep it to 3.4 ounces or less and put it in your liquids bag. TSA lists medications as an exemption to the liquids rule.
Pack strips in a pocket or the bag under the seat rather than a checked bag, so you can reach them when you want to sleep. Keep a few in the original wrappers, since each one is single use and you may want a fresh strip for the hotel on your first night. If you're crossing time zones, a strip can come in handy for an afternoon nap too, as long as you keep within the 12-hour limit each day. Bring enough for every night of the trip plus a few spares. Our travel sleep kit checklist has the full list.
Do nasal strips help with ear pressure?
Nasal strips don't fix ear pressure on a plane. Ear pain during a flight, known as ear barotrauma, comes from the eustachian tube, a narrow channel between the middle ear and the back of the nose. A 2015 evidence review in BMJ Clinical Evidence explains that the tube is usually closed and opens when you swallow or yawn. As the plane descends, the outside pressure rises and the tube has to open to let air into the middle ear, which gets harder as the pressure difference grows.
A strip widens the front of your nose. It doesn't reach the eustachian tube, so there's no reason to expect it to change ear pain, and no study has shown that it does.
The same review lists what makes ear pain more likely: the speed of descent, your own anatomy, inflamed nasal lining from colds or allergies, and whether you're awake or asleep. It found that 20% of adults and 40% of children on commercial flights had negative pressure in the middle ear after landing.
How do you protect your ears while sleeping on a plane?
The simplest way to protect your ears is to be awake for the descent. The 2015 review notes that being asleep makes barotrauma worse because you swallow much less. Set an alarm for about the time the descent begins, or ask your seat neighbor or a companion to wake you.
Once you're awake, swallow, yawn or sip water as the plane comes down. The review describes a Valsalva maneuver, blowing gently while keeping your mouth and nose closed, and reports that 46% of people with negative ear pressure after a flight equalized it this way. It also found some evidence for a nasal balloon device inflated through the nose during descent, though not from randomized trials.
Decongestants are a question for a pharmacist or doctor. The review found that oral pseudoephedrine may prevent ear pain in adults who have had it on previous flights, but that it can cause drowsiness, which could reduce swallowing. It found no good evidence that decongestant nose sprays prevent ear pain compared with placebo. Decongestant nose sprays are also meant for short-term use only, which we explain in decongestant spray rebound.
If you have a heavy cold or sinus infection, ask a doctor whether it's wise to fly. Nasal strips for a cold covers what strips can and can't do when you're congested.
How should you use a nasal strip on a long flight?
Put the strip on when you're ready to sleep, not at boarding. The best-known strip maker says its strips shouldn't be worn for more than 12 hours a day and that each one is single use, so on a 14-hour flight a strip applied at takeoff would run out before you land. More on timing is in how long you can wear a nasal strip.
A few steps help it stay on in a dry, cramped cabin:
- Wash and dry your nose first. Strip makers say the adhesive won't hold well on wet, oily or moisturized skin, so skip face cream until after you take the strip off.
- Place it just above the flare of your nostrils, on the soft part of the nose, and rub it in place.
- Drink water through the flight, so your nose and mouth don't dry out as fast.
- Take it off slowly. Strip makers suggest loosening it with warm water first, which you can do with a damp paper towel from the restroom.
A clear strip is the less noticeable choice in a crowded cabin. The maker says its clear strips use a non-porous material that's easier to remove and suits sensitive skin.
Can you use mouth tape on a flight?
You can use mouth tape on a flight if you already sleep comfortably with it at home and your nose is clear. Dry cabin air makes a dry mouth more likely, and tape keeps your lips together once you nod off. Put the strip on first, breathe through your nose for a minute with your lips closed, and only add tape if that feels easy. If your nose is blocked, use the strip alone.
Fold one corner of the tape so you can remove it in a second when the seat belt sign comes on or you need to be awake for landing. We don't recommend mouth tape for children. Our guide to mouth taping when traveling covers tape on planes and in hotel rooms in more detail.
Check this first. Skip mouth tape and see a doctor if you snore loudly, wake up gasping, have been told you stop breathing in your sleep, or can't breathe comfortably through your nose. More on safety
Our pick (paid partner): TitanAir Nasal Strips
For flights, our pick is TitanAir Nasal Strips from Titan Recovery. This is our recommendation, not the result of testing or ranking products ourselves.
Titan says TitanAir strips are drug-free external nasal dilators with flexible spring-loaded bands, and that nothing is absorbed. Its application steps suit a travel day: clean and dry your nose, skip moisturizer, and place the strip just above the flare of your nostrils on the soft part of the nose. In the morning, or after landing, Titan says to loosen it with warm water and peel slowly from the ends inward.
Titan designed the strips to pair with its mouth tape, says they're third-party tested and certified PFAS-free, and backs them with a 30-night guarantee. They come in 30, 90, 180 or 360-night supplies with free US shipping.
Read next
Common questions
Can you wear nasal strips on a plane?
Yes. Nasal strips are a dry, drug-free adhesive product, so they aren't covered by the TSA liquids rule and can go in your carry-on. Put one on when you're ready to sleep. Strip makers say not to wear one for more than 12 hours, so on a very long flight, don't put it on at takeoff.
Do nasal strips help with ear pressure when flying?
Not directly. Ear pain on a plane happens when the eustachian tube, which connects the middle ear to the back of the nose, can't open to equalize pressure. Strips widen the front of the nose, not that tube. Swallowing, yawning and staying awake for the descent are the steps that help the ear.
Why does my nose get so dry on planes?
Cabin air holds very little moisture. A study of 26 intercontinental flights found a mean relative humidity of 6%, and another put typical humidity on long flights at 10% to 20%. For comparison, the EPA advises not humidifying a home above 50%. A saline spray and plenty of water can help your nose feel less dry.
Should I sleep during landing?
It's better not to. A medical evidence review on ear pain during air travel says being asleep makes barotrauma more likely, because you swallow much less while sleeping, and swallowing is what opens the eustachian tube. Set an alarm or ask a companion to wake you before the descent starts.
Can I take a nasal spray through airport security?
Yes, within the liquids rule. TSA allows liquids, gels and aerosols in containers of 3.4 ounces (100 milliliters) or less in a quart-sized bag, and medications are listed as an exemption. A standard saline or nasal spray bottle is well under that size.
Can I use mouth tape and a nasal strip on a flight?
Some people do, but only if they already sleep comfortably with both at home and their nose is clear. Put the strip on first and check that nose breathing feels easy. If cabin air or a cold leaves your nose blocked, skip the tape and use the strip alone.
Sources
- Cabin air quality: indoor pollutants and climate during intercontinental flights with and without tobacco smoking
- Perception of cabin air quality in airline crew related to air humidification, on intercontinental flights
- Middle-ear pain and trauma during air travel
- Liquids, aerosols, and gels rule
- Use and care of home humidifiers
- Breathe Right FAQs
- Breathe Right Original Clear
- Effects of nasal dilator strips on subjective measures of sleep in subjects with chronic nocturnal nasal congestion: a randomized, placebo-controlled trial
- Nasal Dilators (Breathe Right Strips and NoZovent) for Snoring and OSA: A Systematic Review and Meta-Analysis
- TitanAir Nasal Strips
About this article
- Research
- 10 published sources, listed above.
- Evidence
- Limited. How we rate it
- Last checked
- October 26, 2026
- Funding
- Paid partner of Titan Recovery. Their ads are labeled.
- Found an error?
- Tell us. We log fixes on the corrections page.
* This content is for informational and educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease or health condition. Talk to a qualified healthcare provider about your health.