Helium Balloons: How Long do They Last?

Helium BalloonsI recently received an email reading:

“I have a question for you! You know when you buy a helium balloon it goes down a little after half a day – and then more etc, does that ever happen when it’s in the box?”

As customers often ask how long helium balloons stay inflated, I thought it would be worth publishing my answer. Here’s my reply:

“Hello Paula,

Thanks for your email.

Foil balloons filled with helium gas (like the ones we send) usually only start to go down after 3-4 days. In the right conditions it might last up to 8 days. We prepare the balloons in the afternoon for arrival the very next morning so they arrive fresh and customers can enjoy them for a few days.

Sometimes faulty balloons can deflate quickly after being filled up. To make sure that any faulty balloon is weeded out, we leave all our helium balloons to stand at least an hour before packing them up.

I hope this help! Regards,

Sophie”

For those of you who are like me curious by nature here are a few more facts about balloons and helium:

  • Foil balloons last for 3 to 5 days – sometimes longer as the technology as improved in recent years. They can be refilled by taking them to your nearest helium balloon retailer
  • Latex balloons filled with helium typically float for only 8 to 12 hours. The gas escapes through small pores in the latex. Treated with Hi-Float – a glue like gel that makes the latex less porous and helps lock the helium in, they will last for over a week
  • Helium gas is sensitive to extreme temperature changes. This means that:
    • Helium balloons might appear deflated in cold air – to resolve the problem, simply put your balloon somewhere warm and it will expand again
    • You need to remember to keep your balloon away from extreme heat however, as this could cause the helium to expand and the balloon to burst
    • Always keep the weight attached to the balloon to prevent it from floating away (there’s nothing worse than the scream of a small child who has just lost his/her balloon).

Here are a few facts about helium itself:

  • Helium is an inert, lighter-than-air gas (which is why helium filled balloons float)
  • It is a non-toxic, non-flammable, odourless and colourless gas
  • Helium is an asphyxiant and should never be inhaled

Find out more about the chemical properties of helium here or visit our online shop to buy helium balloons, helium gas canisters or party balloons and accessories!

42 Responses to “Helium Balloons: How Long do They Last?”

  1. john
    7 November, 2007 at 6:03 pm #

    my teacher got her balloon on her bday. in Aug.29th 07 and its still floating in the air and its Nov.7th 07 why is that?

  2. 8 November, 2007 at 11:15 am #

    Hi John,

    Thanks for your comment. As new technologies have been launched such as Anagram XtraLife or the Qualatex large Bubble balloons, some helium balloons do now last longer usually around four to five weeks, sometimes beyond this.

    These new generation helium balloons are made of less permeable materials, which means the small helium molecules, stay in the balloon longer, resulting in longer float times.

    That said it sound as if your teacher got a very good balloon as it is still floating over two months after her birthday!

  3. amanda
    9 December, 2007 at 11:16 pm #

    Hi i was wondering if you could answer a question i have. I recieved a little helium get well soon balloon 18years ago after my baby died. This balloon is still solid, is this normal, after such a long time?

  4. 10 December, 2007 at 12:25 pm #

    Hi Amanda,

    The smaller balloons that are mounted on a stick are usually filled with air rather than helium and last much longer than balloons filled with helium.

    Helium molecules are much smaller than air and “escape” the balloon more easily.

    A few customers have reporter keeping such balloons for a few year – but 18 years is a very long time!

  5. nicole zeppo
    1 April, 2008 at 5:35 am #

    my helium balloon has lasted 23 days and its still goin!

  6. Santana
    11 April, 2008 at 7:57 am #

    hi i got my boyfiend a helium balloon for my boyfriend on valentines day 2008 and its now april 11, 2008 and the balloon is still floating…how long did the longest helium balloon stay afloat for??
    Santana

  7. 11 April, 2008 at 9:49 am #

    Hi Santana – I have not got any exact information on what the record for the longest floating helium balloon is. However as technology is improving, we have quite a lot of customers reporting that their balloons have lasted over two month. So your Valentine balloon is doing well!

  8. Shocker!
    30 April, 2008 at 3:24 pm #

    My Valentine Day helium balloon of 2008 is still floating high! Its April 30th, 2008! I am actually very shocked.

  9. Jessica
    19 August, 2008 at 10:16 pm #

    I have a huge helium foil balloon my boyfriend has given to me on 2/14/08 and is still floating till this day 8/19/08!

  10. Tara
    14 September, 2008 at 11:10 pm #

    Hi
    I let some helium ballons into the air on sat 6th sept 2008, these were normal ones, the foil ones we kept and are still on the ceiling where we put them.
    Was wondering how long the ones we let go would actually stay in the air assuming they didnt pop, and how far could it travel?
    I know this is prob hard to answer but it fasinated me when i reaslised the others are still up!
    Thank

  11. 15 September, 2008 at 9:52 am #

    Hello Tara,

    Normal latex balloons usually only stay inflated for a few days. Latex is a more porous material and the small particles in helium escape quite easily.

    How far balloons travel really depends on the weather conditions – winds and so on.

    When people organise balloon races – they sometimes receive replies from half way around the world! Anything over a few hundred miles is rather unusual

  12. Tara
    15 September, 2008 at 5:47 pm #

    Ahh so they have got far away, cool!

    We did write Tara and Steve sept 6th…..maybe should put tags on them with email addy lol

    Thank you for ur quick reply

  13. lisa
    12 October, 2008 at 2:22 pm #

    i brought a helium balloon for my godson in april 2008.its now the middle of october and its still floating now! i think it was £5 well spent :)

  14. Kelly
    5 November, 2008 at 11:18 pm #

    Another question?? If you MAIL a helium balloon overnight in a box will it pop on the airplane??

  15. 6 November, 2008 at 11:06 am #

    Hi Kelly,

    We send plenty of balloons by plane and they arrive in good condition. When they pop in transport it is usually because the package has been squashed or knocked.

    Hope this helps :)

  16. derek
    19 November, 2008 at 10:58 am #

    i have had an air foiled ballon on a white stick which it is tied onto by the vendor in my bedroom for 3 years since my grandson was born is this possible?.it is as full as the day it was purchused.regards derek from london..could this be a record even?..im intrigued..

  17. 19 November, 2008 at 11:03 am #

    Hi Derek – The small balloons on stick are air filled rather than helium filled they are also sealed with machines in the factory which makes them completely tight. They virtually last forever!

    The helium filled ones deflate because the helium particles are much smaller than air and “escape” the balloon more easily.

    I’ve had someone who has kept a small air filled balloon for 18 years – and still counting!

  18. kami
    22 November, 2008 at 12:28 am #

    I have had a balloon since my bday on July 21st 2008…..it is now November 21st and it is still floating. Hasnt shrunk at all? Any explanation?

  19. 22 November, 2008 at 9:19 am #

    With the improvements in technology in recent years, some balloons now last longer. Still so your balloon is doing very, very well!

  20. Somone
    1 February, 2009 at 2:56 pm #

    I was just wondering if anyone knew whether or not it was possible to keep helium 100% contained?

    Also would the pressure of the helium have anything to do with its lifting capabilities?

    I notice someone stating that a cold balloon would appear flat. Does it also not float or float less?

    And if so it is reasonable to believe that increasing the heat aka pressure would therefore increase its floating abilities?

    Thanks

  21. 1 February, 2009 at 3:00 pm #

    I’m not a scientist so I can only guess the lifting capabilities vary as the balloons expand / retract with temperature changes. Helium can be 100% contained (it is in gas bottles for instance) but as far as I am aware not in commercial balloons!
    :)

  22. elaine & pete
    23 March, 2009 at 7:12 pm #

    Hi, Im getting married on May 30th 2009. I was thinking of buying a balloon arch and balloon table decorations, the balloons are latex and were planning to inflate them with helium ourselfs as we have found this is the cheapest way to do it. We were hopeing to get them ready the night before the wedding or possible very early in the morning as no one will be avalible to do it the day of the wedding. We will be arriving to the hall about 2pm but were a bit worried they might deflate by then. Can anyone tell us roughly how long the balloons will last.

  23. 28 March, 2009 at 9:39 am #

    Hello Elaine,

    Latex balloons usually only last a few hours. So if you inflate them the night before they probably won’t look their best in the morning.

    I would recommend you use a product called Hi-Float to ensure your balloons last. Hi-Float is a life extender for latex balloons. You pump a small quantity of gel inside the balloon, make sure it covers al the surface of the balloon inside and inflate as usual. Your balloons will then last through the night, all day and for at least a week after that!

    Alternatives would be to ask a friend to blow the balloons for you on the day (choose latex balloons that are at least 12″ – they will last longer), or choose foil balloons.

    Best wishes for the wedding and let us know how the balloons do!

  24. nate
    16 April, 2009 at 6:39 pm #

    i have a balloon that is still floating strong i recieved it feb 15 09 and to this day its still floating why ?

  25. 18 April, 2009 at 8:24 am #

    It looks as if you got a good quality helium balloon – although it does not always happen this way, it is not unusual for them to last several weeks!

  26. Kenny
    3 May, 2009 at 3:40 pm #

    I have a balloon that is still rock solid with air. I’ve had it since I was 7 (1987). It was given to me by my parents when I was in the hospital getting my tonsils out. It has been 22 years now. I just read that someone else had a balloon for the last 18 years. Thought I would throw my number out there.

  27. Bruno C. L.
    7 May, 2009 at 2:23 am #

    (i’m brazilian so i don’t speak english very well)

    I have two balloons that i got as a gift when I was born in 1993…. one of them is half full and the other one still fresh even past 15 years!!!

    I think i’ll contact Guiness Book….

  28. Ken
    28 May, 2009 at 6:01 pm #

    I got “Happy Birthday” baloon last July (07/10/2008). It is still floating. It is now starting to sag so don’t think it will make the year mark but I am hoping for June 10. This would make it 11 months.

  29. Steve C
    24 June, 2011 at 9:44 am #

    My wife and I were given a small foil balloon, air filled I expect, on our wedding day back in may 1994. As of June 2011 its still solid. Pretty good going or what?

  30. Lucy
    19 September, 2011 at 5:32 pm #

    my grandmother and grandad bought me an ‘its a girl’ helium balloon when i was born. its now almost 16 and a half years later and its still 100% hard and up. it just doesnt float :)

  31. Alex smith
    26 October, 2011 at 3:19 am #

    My sister got a helium ballon 2 months ago. Still going strong.

  32. Alex smith
    8 November, 2011 at 2:32 am #

    Now 3 months.

  33. jade
    12 November, 2011 at 7:38 pm #

    Hello

    I got my daughter a massive 3 helium balloon today for her birthday, getting from the car to the house, it deflated alot….

    Will be heat from my house inflate it again? its still up just looks 3 + days old…

    her birthday isn’t until tomorrow (13th) so i want to it look good…

    Thank you

  34. 14 November, 2011 at 2:52 pm #

    Hi Jade, It looks as if your balloon is faulty and leaking gas. It is usually the case if your balloon starts deflating almost strait away as described. I would recommend you take it back to the shop and explain what happened. They should replace it for free.

    Hope your daughter has a great birthday!

  35. Madeline
    13 February, 2012 at 12:55 am #

    Hi, got some shape balloons for my friends birthday and they delivered yesterday saturday but her birthday is not till wednesday its a shape balloon of 22” and its in a big box closed, do you think it would get deflate by then or it would last, because i wouldnt like to give her just a deflating ugly balloon, please if you could help me, thanks

  36. 14 February, 2012 at 9:51 am #

    Hello Madeline,

    There is a good chance that the balloon might have started to deflate by then. Whether you open the box or not will make no difference. I would suggest that you check the balloon the day before the birthday. If it has started to go soft, just take it to a florist or card shop for a helium top up, put it back in the box and you will have a fresh balloon again.

    You can refill foil balloons as many times as you want!

    Hope this helps x.

  37. gemma
    9 March, 2012 at 11:02 am #

    I had a balloon bought for my son the day he was born, 24th may 2006, and it is still fully inflated today

  38. Jack
    1 April, 2012 at 4:57 pm #

    Hi Sophie,

    I’m doing a science project on helium balloons and in order to put you as a resource I need your last name. I understand if you don’t feel comfortable giving it to me.

    Thanks!
    Jack

  39. 1 April, 2012 at 8:32 pm #

    Hi Jack,

    My name is Sophie Baxter we have more helium facts in our Helium facts for kids and grown ups too that might be of interest to you.

    Kind regards,

    Sophie Baxter

  40. april
    29 April, 2012 at 10:31 pm #

    I got a foil balloon when my son was born on January. 30 1999 he passed away on February. 2 1999 I kept. the balloon as a keep sake and it is now April 2012 and the balloon. is still fully. inflated. .hasn’t lost any air. is this even sopost to possible …??

  41. Amanda
    17 May, 2012 at 5:27 am #

    Hi

    We have a through-the-night Cansa Relay. We want to helium inflate balloons through the night and sell them. At a certain time in the early morning, about 6 o’clock we want to let all the balloons with a note, go up in the air. What time should we start inflating balloons, so by 6 they can still go up?

    Thanks

  42. 17 May, 2012 at 8:53 am #

    Hello Amanda,

    If you want to release the balloons into the air, you need to use latex balloons. Latex balloons filled with helium usually float for 8 to 12 hours. The larger your latex balloons the longer they would last, so I would recommend you choose 11″ rather than 9″ balloons and start inflating around 11/12.00 for a 6.00 am release. Let us know how it goes. Good Luck!

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