When you click on one of our offers and make a purchase, we may earn a small commission.
O2 Discount Codes

O2 Discount Codes & Vouchers

Save £300 in June 2024

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.

Valid until 05/06/2024

Valid until 28/06/2024

Valid until 28/06/2024

Valid until 13/06/2024

No expiry date

Valid until 31/12/2024

No expiry date

Valid until 31/12/2024

Valid until 06/07/2024

Never miss a O2 voucher code again!

Unsubscribe at any time

100% tested

Free

By registering/subscribing, you agree to the Terms & Conditions and Privacy Policy.

Give These Just-Expired O2 Voucher Codes & Deals a Go

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

Valid until 31/07/2023

Valid until 07/09/2022

Valid until 10/02/2024

Valid until 07/02/2024

Valid until 07/02/2024

Valid until 07/02/2024

Valid until 03/01/2024

Valid until 03/11/2023

Valid until 02/11/2023

Valid until 13/08/2023

Valid until 07/08/2023

Are we missing a voucher?

Submit new Voucher

You may also like these vouchers

Tested on 15/05/2024

Valid until 31/12/2024

Last tested 2 days ago

Tested on 27/05/2024

Explore All Valid O2 Deals & Sales for June 2024

Discount

O2 Voucher Details

Expires

£300

Score £300 off Samsung S23 Ultra

05 June 2024

£200

Top Voucher: £200 off Samsung Galaxy S22 Orders

27 June 2024

£200

Take Advantage of £200 off Samsung Galaxy S23+ Smartphones

27 June 2024

£100

Take Advantage of £100 off iPhone SE 3rd Generation Orders

13 June 2024

£48

Limited time only: £48 off any iPhone 15 Pro on Selected Tariffs

No expiry date

20%

Shop 20% off with UNIDAYS with Voucher

31 December 2024

25%

O2: Up to 25% off for NHS Workers

No expiry date

25%

O2: Up to 25% off Airtime Plans with O2 Open Sign-Up

31 December 2024

£18.54

Save at O2 - Apple iPad 10th Generation 256GB Model for only £18.54 per Month

06 July 2024

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 %!