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O2 Discount Codes

£100 O2 Promo Code – Save today!

Free codes – 2 available

The UK's second-largest mobile phone provider, O2 mixes affordable contracts with the latest technology. Offering a range of perks for loyal customers, it's a brand that treats shoppers well - especially when they shop for new phone contracts or broadband with an O2 voucher deal.

Tested on 05/06/2022

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30 Day Statistics: 2 new Voucher Codes added • 6 Tested by hand • Last edit on 01/07/2022

Recently Expired O2 Discount Codes & Promo Codes

Feel free to try one of these O2 discount codes that may still work.

No expiry date

No expiry date

Valid until 13/01/2022

Valid until 31/10/2021

Valid until 17/06/2021

Valid until 30/05/2021

Valid until 24/03/2021

Valid until 24/03/2021

Valid until 22/03/2021

Valid until 10/02/2021

Valid until 10/02/2021

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Tested on 06/06/2022

Tested on 28/06/2022

Valid until 08/07/2022

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Explore All Valid O2 Deals & Sales for July 2022


O2 Voucher Details



Shop £100 off Sony Xperia 5 III Orders at O2

27 July 2022


Free Delivery at O2

No expiry date

Useful tips and information

O2 Voucher Codes

Does O2 have a student discount?

Yes, students enjoy great savings at O2 with the UNiDAYS and TOTUM Student Offer. Prepare for 30% off their Airtime Plan on Selected Tablets! All you need is an active and valid UNiDAYS or TOTUM account to qualify for the deal.

Using your discount code

Browse Voucherbox for an O2 discount code you want to redeem. Once decided, copy the code to your clipboard and click through to the O2 store. Find your desired products or plans that fit the deal and add them to your basket. Then head to your basket and scroll down to reach the box marked "Got a Promo Code?" Simply paste your O2 voucher code here and click "Update." Your code should be applied now, and you can check out as normal.

What do I do if my O2 promo code doesn’t work?

Some codes might fail to deliver despite our constant review. In that case, any one of these common problems could be to blame:

  • O2 voucher codes often have time limits, so be sure to purchase O2 products before the deadline arrives!

  • It's essential to enter every O2 discount code accurately. If the code doesn't work, you may have accidentally erased a character. Try the Voucherbox code again to see if it works.

  • Review the terms and conditions of your O2 voucher again. Can you locate any restrictions that keep the code from functioning? A code only valid for existing customers, for example?

  • Is there a minimum order you didn't reach? Larger discounts often come with such a requirement.

  • O2 promo codes are often restricted to certain models, brands, or categories. Make sure you've picked a device that fits the deal.

Can I benefit from any existing customer deals?

Yes! O2 wants to ensure that their customers get the best deals. Let's take their Multisave program as an example: Get 20% off an Airtime Plan of every new eligible Pay Monthly connection you add to your account. You can even add up to 20 Multisave discounts!

Does O2 offer a blue light discount?

Yes! Take a closer look at their “O2 Open & Friends and Family discounts - How to sign up” guideline. In the “O2 Open discount” section you'll find out, how O2 supports NHS, health service, health trust workers and many more with up to 25 %!