I plan to take a few external hard drives from Boston to Paris (air travel). How can I safely transport them? Beyond backing them up, bubble wrapping them and taking them as in cabin-luggage, what else can I do to reduce the likelihood of damage? I am mostly afraid of screening machines and in-flight vibrations.

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    It's been quite a while since I looked at a datasheet of an HDD, but it wouldn't surprise me to hear that you will actually die before your harddisk does. I just downloaded a random one and it says temperature -40°C to 70°C, shock 900g(1ms), vibration 5g 15Hz-500Hz, humidity 5%-95%, altitude -300m-12000m (note: this is really air pressure, not altitude, aircraft cabins are typically pressurized to less than 3000m, the FAA mandates below 2400m). So, the answer is: don't worry, what kills your drive is going to kill you, too, apparently :-D Sep 28, 2014 at 10:41
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    @JcomörgWMittag: In particular, commercial airplanes are typically only rated to withstand sustained forces of up to 4g or so. Sep 28, 2014 at 20:50

6 Answers 6


External drives (or internal ones - same drive, different case) will have zero problems with commercial air travel. X-rays don't affect them, and any in-flight vibrations capable of damaging a disk drive will also destroy the airplane.

Now that's assuming it's turned off. Running drives don't like to be knocked around, but that applies on your desk too. As Ital mentioned altitude is a factor for spinning drives, but the altitude limits are well above standard cabin pressure. If the yellow masks pop out of the ceiling it's time to put your computer away anyway, as you will be landing very soon.

So unless you drop it down the stairs, or it falls off the baggage cart and gets run over by an aircraft tug, it will be fine.

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    "If the yellow masks pop out of the ceiling it's time to put your computer away anyway, as you will be landing very soon." Well, that's a bit of an understatement :)
    – Moriarty
    Sep 28, 2014 at 9:10

Quoting this, this, and this:

External disks are no different that internal disks, in terms of media and components. Laptops have been going through X-Ray machines for decades without incident, so I see no issue with external drives doing the same safely.


It seems you have done your homework already. The most crucial part is to avoid shocks which is why it is better to handle it yourself.. Turbulence can occur regardless, so it is best to keep hard disk drives padding in bubble-wrap or foam. An anti-static bag would also help with an unexpected electric discharge, just to be safe.

The only additional caution I can suggest, is keeping them off. This parks the head and is safer. On most flights though, a hard-drive will generally operate safely as the cabin is pressurized quite well on modern aircraft except for very small ones. When the pressure goes below about 68kpa, small-platter (2.5" & 1.8") HDDs often fail. A 3.5" one usually work as low as 56kpa. This is why there is a maximum altitude rating of 10,000' for small drives and 15000' for standard ones.

  • Get an SSD, no moving parts.. Sep 27, 2014 at 22:32
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    Already a convert, 7 SSDs so far! Definitely much more reliable for transport and rugged.
    – Itai
    Sep 28, 2014 at 1:15
  • and much faster! Sep 28, 2014 at 1:38
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    I know this is old, but would you really need an anti-static bag for an external hard drive?
    – Valentin
    Jul 22, 2015 at 7:55
  • @Valentin - Of course, it is less needed but it mostly depends on the casing. Some are made of metal, while others are entirely plastic with the rubber padding between the disk and case. The latter would not need an anti-static bag.
    – Itai
    Jul 22, 2015 at 19:59

You can also use storage case bags that are specifically designed to carry external hard drives such as this one:

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Been travelling worldwide with my 3 Samsung 500 gig HDD's for over 5 yrs now and never experienced a problem. Airport scanners include LAX, JFK, HKIA, Ben Gurion, and the dreaded "heathrow" (don't go there!!).

  • now i am curious about Heathrow Sep 27, 2018 at 22:12
  • The OP wouldn't asking the question unless he's looking for a much smaller risk of failure than could be inferred from one person not having a failure in 5 years. This answer is a bit like telling someone asking about cycle helmets that you've been cycling without one for five years and you're still alive. Nov 29, 2021 at 0:00

Modern hard drives put their heads in a safe position when the device is powered off.

This reduces the chances that moderate shocks damage the platters, contrary to what happens when a spinning drive is shocked.

As pointed out, the shock required to damage a hard disk that is powered off is enough to show visible damage. The disk may have to call from the baggage store towards the floor. At that point, a lot of different hardware will be compromised as well.

I still recommend bubbles anyway.

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