1 in 5 passengers get sick on every flight – Here are 10 tips to stay healthy

Signing up for credit cards through partner links earns us a commission. Terms apply to the offers listed on this page. Here’s our full Advertising Policy.

More than 1 in 5 people who travel on planes will suffer from a cold or flu after the flight. On your next flight, look left and right on your row and know that at least one of you or your traveling companions will catch something on the flight you are about to take. 

With to the recent coronavirus outbreak, flyers are even more concerned about protecting themselves while traveling. The U.S. government has gone as far as declaring the virus a public health emergency, changing the entry policy for those traveling from the most seriously affected countries, and airlines have canceled some Asia flights. Between that and the usual peak of cold and flu season, it’s especially important to take steps to minimize your risk of getting sick.

For more travel tips and news, including how to book epic round-the-flights with miles, sign up for our daily newsletter.

A Recent Study by MattressFirm Found That Over 75% of the 2,800 People Surveyed Said They Would Still Fly on a Plane, Even if They Had a Cold or Flu
This doesn’t have to be you this winter travel season. (Photo byManuel-F-O/iStock)

How to avoid getting sick on an airplane

Plan ahead for your next flight by understanding what causes illnesses to spread on plane and how avoid them.

Why we get sick on airplanes

Airplanes are the nearly perfect environments for getting sick. First of all, they are enclosed and contained spaces where people from all over the world are together for set — sometimes long — periods of time.

A University of Alabama study found that some germs can stay up to seven days on a plane.  Avoiding contact with people around you is not enough, because there is a week of history piled up on your seat.

If that weren’t enough, factor in reduced oxygen and humidity from being at higher altitude. Even with pressurized cabins the atmosphere in a plane can cause dehydration.  This, in turn, dries up the mucous membranes in our throat and nose that normally protect us from over 99% of the diseases we encounter in a normal day.

Airplanes are Common Places that Travelers End Up Catching the Cold or Flu. But Following These 10 Tips, Will Keep You Healthy on Your Next Flight.
Airplanes are common places that travelers end up catching a cold or flu. But following these tips will help keep you healthy on your next flight. (Photo by martin-dm/iStock)

But there are still ways to keep yourself healthy. Here are some tips for your next flight:

Get plenty of rest before your flight

As soon as you step on that plane, your body is about to endure a gauntlet of germs from all over the world. You need to make sure it is in its best condition.

Getting plenty of sleep before your flight is one of the best things you can do to make sure your immune system is performing at its peak. Try to get a solid seven to eight hours of sleep the night before.

Eat well

I’m generally a very healthy eater at home, but because healthy eating is so hard during long travel, I often just admit defeat and enjoy a few days of unhealthy food while I fly. Unfortunately, this is the worst thing you can do for your body. As with sleep, what you eat will have a huge impact on the strength of your immune system.

This tip is even more important for folks who generally are very healthy eaters. A switch to greasy foods and sugar can have a much more dramatic impact on your immune system if it is used to healthy proteins and vegetables on a daily basis and then is deprived of them without warning.

Airborne or Emergen-C are powerful vitamin supplements designed specifically for boosting immune systems. I take them two to three days before a flight and a few days after to keep my immune system strong. (Photo by Simone Hogan/Shutterstock)

Avoid salty foods as they can speed up dehydration. I also take Airborne (or Emergen-C) once a day for two to three days leading up to my flight and a few days afterward. These products provide a massive injection of vitamin C, among other vitamins, designed to give your immune system a boost. The science on these supplements is often debated, but in my opinion, it definitely doesn’t hurt anything to take them.

Buy plane food (Yes really!)

Ok, so you can’t just buy any plane food. But many of the options offered on your flight are actually very good choices. Fresh fruits and vegetables will contain all the vitamins and nutrients your body needs, while also hydrating you. Bread and crackers are helpful in settling upset stomachs and preventing motion sickness.

Here are some healthy food options that most airlines will offer for purchase during a flight:

  • Oatmeal: Hydrating and stomach-soothing
  • Cheese and crackers plates:  Crackers are great, and they often come with grapes, apples or carrots that will hydrate and provide healthy vitamins.  This is my go-to meal on planes, and most major airlines offer this
  • Ham and cheese sandwich:  Easy on the stomach and relatively well-balanced.  Avoid any side of potato chips, since salt can dehydrate you
  • Carrots and hummus:  We are seeing several airlines offer a small plate of carrots and hummus, or maybe celery. 
Delta In-Flight Menu
Check out the healthy options available on all Delta domestic flights right now.

Most of these cost about $5 to $9, which is a small price to pay to help avoid getting sick if you need it. (Plus you have an excuse to give your boss for why you charged the $8 cheese and cracker plate to the company credit card.)

Use sanitizing wipes in the restroom, tray table, seat belts, and armrests

Remember that germs can last for up to seven days on a flight. This means when you sit down, the germs on your seat, armrest, tray table, seat belt and seat pockets could have been infected as much as a week earlier. With a domestic plane flying eight or more segments a day, that is up to 56 people who could have left behind something icky where you are now sitting.

A package of sanitizing wipes costs only a few dollars at the drug or grocery store. You can even find travel sizes that easily slip into a pocket in your purse or backpack.

Remember to wipe down:

  • Armrests: Shared by everyone, but easy to clean if you have your wipes
  • Seat belts and seat buckles: Everyone touches these at least twice per flight, often more
  • Seat pocket: Wipe it down, but it is best not to even use this. (More on that later.)
  • Tray table: Considered the most germ-infested part of the whole plane. It has up to eight times more germs and bacteria than the flush button in the airplane bathroom
  • Touchscreen entertainment center: These are frequently handled and rarely cleaned.  They are the first thing most people handle after returning from the restroom (yes, even before the seatbelt, surprisingly). Give it a solid wipe down and/or avoid entirely

Also, if you ever have to go to the restroom, remember to bring your pack of wipes into the restroom to wipe down the seat, flush button, and sink.

Bring hand sanitizer and use it often

A small bottle of hand sanitizer can be purchased at home for $1 to $2. Make sure the bottle is 3.4 ounces or less so that you can bring it in your carry-on.

Use it on your hands frequently throughout your flight, since there is no knowing when you have collected something on your hands.

This Bottle of Hand Sanitizer is Just 2.4oz, Making it Safe to Take Through Security. Costs Only $1.50 at Target
This bottle of hand sanitizer is just  2.4 oz, making it safe to take through security. And it only costs $1.50 at Target.

The CDC recommends a hand sanitizer that contains at least 60% alcohol. Check the back of the bottle under active ingredients to make sure yours qualifies.

Stay hydrated and bring your own bottle

One of the most important things you can do to stay healthy during a flight is staying hydrated. This will allow your body’s natural fighting mechanisms to work properly and keep your mucous membranes in your throat and nasal passengers from drying out.

Try to drink at least eight ounces of water every one hour of flight. This is far more than you probably drink at home, but is important because of the increased speed of dehydration during flight.

The easiest thing to do is to bring your own reusable bottle rather than buying a bottle of water from the Hudson News before your flight.

A Reusable Water Bottle is One of the Necessities I Take on Every Flight. This Bottle is Stainless Steel Inside, Keeping the Water Fresh. This 18oz Bottle Is Still Thin Enough to Carry in Backpack Water bottle Pockets (Unlike Clunky Nalgene Bottles).
I take a reusable water bottle on every flight, and at 18oz in size, it’s still thin enough to carry in backpack water bottle pockets (unlike clunky Nalgene bottles).

Most airports now have water bottle filling stations where you can fill up your bottle for free. Not only is this better for the environment, but you are more likely to drink more water if you don’t have to pay $3 a bottle for it. Fill it up before your plane boards so you have a full bottle before takeoff. Then you won’t need to ask a flight attendant during the flight for water.

On long international flights, I have also found the bottle useful in getting more water. I usually take my bottle to the galley at the back of the plane and ask if they can fill up my bottle. This is far easier than getting a 3-ounce cup of water 100 times during a flight.

Choose your seat carefully

Not all seats are equal when it comes to staying healthy. Window seats actually have significantly fewer germs than those in the aisles. 

It is also good to choose a seat away from the lavatories if possible. Seats near the bathrooms tend to have lots of people passing and crowding around them.  The folks spending the most time in the bathroom might already be the sick ones on the plane, and so you are more likely to encounter their germs if they are standing next to you while waiting for a bathroom to open up.

A study published in Clinical Infectious Diseases analyzed a flight from Boston to Los Angeles that had to make an emergency landing after a norovirus outbreak on the plane caused vomiting and diarrhea among many passengers on board shortly after takeoff. The study found no link between using the bathroom and getting sick with norovirus, but did find that passengers in the aisle seats were the most likely to have contracted the norovirus, even if they never used the bathroom or left their seats.

Other studies concerning the patterns of airflow on a plane have confirmed similar findings. Those sitting in the aisles will encounter several times as many germs as those sitting in the window seats.

Avoid touching your face

While most people think you get sick from germs entering your mouth, you are actually far more likely to get sick from germs entering your eyes and nose.

Avoid putting your hands on your face or rubbing your eyes. If you must (such as people who have contacts), then just remember to use hand sanitizer right before you do it.

People traveling by air and sleeping on the plane
When using a sleep mask, remember to be careful about where it was before you put it on. (Photo by Hispanolistic/iStock)

If you use a sleep mask, make sure you are careful where you put it. First of all, bring your own (don’t use an airline’s). Second of all, keep it in your own carry-on bag when not in use. Don’t set it down on the potentially dirty seat or tray table between uses. 

Skip the adult beverages

Drinking alcohol during a flight can further speed up the process of dehydration that has already started. With the lower levels of oxygen in your brain, the effects of alcohol are greatly increased, and your liver will begin working harder to process the toxins in your system.  All of this further takes strength away from your immune system, making you more likely to contract something.

I rarely drink at home. But for some reason when I fly, I always find myself craving a beer or gin and tonic. It might have something to do with me wanting to get the most from my elite status perks, which often include free alcohol on flights, but it is best to just pass on the alcohol.

Coffee is another drink that is best skipped over because it speeds up dehydration. For a healthier option, try drinking tea instead. If you turn your nose up at most airline tea, which usually consists of Lipton black tea and maybe a no-name herbal variety, you can always bring your own bag of tea and just ask for hot water on the flight.

Bring your own entertainment (And don’t even think about touching that seat pocket)

The seat pocket has been found to contain nearly the same amount of bacteria as the tray table (which is the worst area on the whole plane). But the difference is that your sanitizing wipes are relatively ineffective at disinfecting the seat pocket fabric.

Flight attendants can attest that people use these pockets for everything from dirty tissues to used diapers (yes… really!). Most people treat this pocket like a trash can. For these reasons, health experts agree that the best bet is to simply never touch the seat pocket.

 

View this post on Instagram

 

Sì, è un pannolino sporco #passengershaming #mammerispettose #fcopax #cabincrewlife ??✈️

A post shared by Marti?? (@asco_m) on Mar 22, 2015 at 8:50am PDT

And while I know you want to buy the latest hot dog roller from Skymall, it’s better to simply forget that the in-flight magazines exist. With hundreds of pages and tons of surface area to touch, there is no saying how many germs exist on these magazines. They are never cleaned, except when they are replaced once per quarter. Imagine 90 days worth of strangers touching the magazine the next time you go to grab it and you might think twice about how badly you need that Skymall gadget.

The touchscreen entertainment centers are also riddled with germs because they often get more human interaction than anything else on the plane. Children love to rub their nose and then wipe their fingers around the screen. Adults sneeze directly on these areas, which have cracks and crevices that can hold germs for days or weeks.

Try to just bring your own entertainment. I bring my iPad for movies, my Nintendo Switch for playing games and my Kindle for reading books. I never get bored on airplanes, despite never touching those nasty entertainment devices.

Don’t forget about travel insurance

One of the best ways you can protect yourself from the unexpected is to use one of the top credit cards with travel insurance to book your travel.

Many of the top cards for travel insurance, like the Chase Sapphire Reserve®, cover things like any sickness experienced by you or a travel companion which prevents you from going on the trip.

Credit card insurance doesn’t cover virus outbreaks. But thankfully, and especially during situations like the coronavirus outbreak, airlines and hotels are usually very helpful in accommodating travelers with free changes and cancellations.

Bottom line

Airplanes are a perfect cocktail for getting sick. They bring people from all over the world together into a small confined space with little air movement. Dehydration and lower oxygen levels are two of the biggest reasons that our immune systems struggle to run optimally during a flight. It’s no wonder that 1 in 5 people on a flight will get sick.

You can stay healthy by following these 10 tips during your next flight:

  1. Get plenty of rest before your flight
  2. Eat well (take vitamin supplements to boost the immune system)
  3. Buy healthy airplane snacks
  4. Use sanitizing wipes on everything you touch
  5. Bring hand sanitizer and use it often
  6. Stay hydrated by bringing your own reusable water bottle
  7. Choose a middle or window seat (avoid the aisle)
  8. Avoid touching your face (and be careful with your sleep mask)
  9. Skip alcohol and coffee
  10. Bring your own entertainment

Do you have any other tips for staying healthy during a flight?

Want to learn the secrets of super cheap travel using miles and points?  Subscribe to our newsletter and we’ll send them to you daily.

Meghan Hunter is a contributor to Million Mile Secrets, he covers topics on points and miles, credit cards, airlines, hotels, and general travel.

Editorial Note: We're the Million Mile Secrets team. And we're proud of our content, opinions and analysis, and of our reader's comments. These haven’t been reviewed, approved or endorsed by any of the airlines, hotels, or credit card issuers which we often write about. And that’s just how we like it! :)

Join the Discussion!

Subscribe
Notify of
20 Comments
Inline Feedbacks
View all comments
jason
6 months ago

I use a portable air purifier around my neck, swab my nose with chapstick or neosporin, immediately after i get off the plane i do a nasal irrigation with seat salt water . i also get a vitamin IV the day before i fly

Brenna
7 months ago

Over what period of time were people observed for illness after a flight? How was “sick” defined? How many people would have gotten sick in the next X number of days anyway, even if they hadn’t flown? This “1 in 5” figure tells us nothing about how likely it is that the act of flying itself is responsible for the person’s illness.

AB
Reply to  Brenna
7 months ago

Totally agree…I am calling BS on “1 in 5 get sick after a flight”. Maybe the vacation preceding the flight caused it…maybe they were sick beforehand. Show me a double-blind study across multiple populations, flights and geographic areas before quoting this junk science.

Bob Knepp
7 months ago

We always take sanitizing wipes and hand sanitizer – and use them a lot. As soon as we sit down things get wiped down. (Also do this in a rental car.) We also our own food – usually an apple and peanut butter. Skip coffee? What?? ha

Harry Weingartner
11 months ago

With all the instructions we receive on an airplane before talk off, it would be nice if they would tell us to cough into the crook of our arm. Not many people do.
The researchers used the data they collected about passengers’ in-flight movement to simulate how transmission might work when a person is sick. They found that passengers sitting in a sick flier’s row, or the row directly in front of or behind that germ-bag, will almost certainly come within a 1-meter (3.28-foot) radius of the sick person.

Ryan
1 year ago

Choose a middle seat? Terrible advice for mental health!!

Andrew W
Reply to  Ryan
1 year ago

Agreed. I avoid middle seats as much as possible. But if I were really worried about getting sick, I’d probably opt for the window seat since apparently it has a lot less germs than an aisle seat.

escot
1 year ago

One in five passengers on every flight get sick? Really? According to…?

However much we might be inclined to believe it at this time of eyar, this click-bait worthy title deserves an in text source or at least a footnote…. !!??

And just who is “Alex?” A doctor? A public health specialist? Sure, a few sources get vaguely mentioned, but no links, no footnotes…. Much seems reasonable, but come on mms, clean up your act….

BT
Reply to  escot
1 year ago

I don’t let statistics guide me, I rely on my own experiences. I have flown internationally 8 times since 2005 and have gotten a cold every single time! I have implemented most of the advice given here but it seems that even those precautions are not always successful. Once you deplane, you end up walking to customs and often end up in a large crowd of people waiting to get through. In some societies, standing very close to others isn’t considered an invasion of their space so you end up elbow to elbow with people on either side and blowing down your neck…
I have not worn a surgical mask outside a plane but am seriously thinking about doing so, unless that will concern officials who will think I’m already sick and won’t let me through! Perhaps I should also wear a badge stating that I’m only protecting myself.

Thomas
1 year ago

I enjoyed the article and typically follow these rules. I don’t care about the odd looks I get from passengers (and flight attendants!) when I sanitize my seating area. Not to detract from the fun comments about the Skymall catalog, they went bankrupt and ceased publishing in 2015 and re-emerged entirely online.

A couple points I’d add: Meditate on the flight to stay deeply rested and resilient (TM works best); rest is the antidote to stress. And stretch, as much as can be done in the confines of sardine seating. I usually reach up to the cabin ceiling when waiting for the lav, and some twists and turns in my seat to maintain some flexibility and improve circulation.

Andrew W
Reply to  Thomas
1 year ago

Hi Thomas!

Thanks for sharing your tips. I’ve seen quite a few people with face masks and many more like you who sanitize their seat and tray areas. I’ve actually always thought they were geniuses!

I don’t do it myself partially out of sheer laziness, so I guess I like to live dangerously!

Amy Brown
1 year ago

I use an antibiotic ointment in my nostrils a couple of times during a flight. It seems to keep me from getting sick from breathing in germs!

Andrew W
Reply to  Amy Brown
1 year ago

Interesting suggestion! I’ve never thought about this, but it certainly seems to make for an excellent choice to prevent getting sick. I may have to consider this for my next flight