Up to £540 Off Iphone 17 Pro
Save up to £540 on the latest iPhone 17 Pro with O2 and upgrade your smartphone today.
Terms and conditions
- Available while stock lasts.
- See the O2 website for full terms and conditions.
O2 Discount Codes
1 active offer
Best Deal: £540 Off
Active O2 Discount and Promo Codes valid for September 2026
Cashback
2.1%
Cashback Now Available with Love Cashback
Earn up to 2.1% back from your total purchase price when you shop at O2 through Love Cashback.
2.1% cashback for accessories
2.1%
1.4% cashback for prepay handset
1.4%
FAQ’s about our O2 promo codes
Why is my O2 discount code not working?
There are several reasons why your O2 promo code isn’t working;
- Check if your code is still valid and hasn’t expired.
- Double check to see if you have not entered the wrong code sequence.
- You need to check if the promotion O2 is offering is still valid.
- Your order total might not meet the requirements of using the code, hence you need to verify if your total qualifies for the discount.
Do they offer O2 student discounts?
Yes, O2 student discounts are offered on the airtime plan when signing up.
Can I use more than one O2 voucher code?
No, unfortunately you can only use one O2 voucher code per order.
How to use my O2 discount codes
1 Step 1: Choose an O2 discount code
Select your O2 discount code from the codes listed above and copy it.
2 Step 2: Start shopping
Select your plan and mobile you want to purchase and add them to the cart.
3 Step 3: Checkout
Paste your O2 promo code code at checkout in a box written ‘Promo code’ and click on ‘Update’ to apply it. Check the image below in case you encounter any difficulties.
Pros and cons of using a discount code
Pros
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When I upgraded my plan I used a promo code from Love Discount Vouchers and got an unlimited plan at a fraction of the cost. Submitted by Xanthe
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I used a voucher code which lowered the total of my cost. Submitted by Benny
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For every purchase I make on O2, I always visit Love Discount Vouchers and get discount codes which have saved me a lot of money. Submitted by Paula
Cons
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My code unfortunately expired before I managed to use it, and I missed the discount. Submitted by Greg
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The best of O2
O2 is the UK's largest and most dependable mobile network, offering the fastest broadband speed. You can take advantage of O2’s various discount codes and save while choosing a flexible plan. O2 ensures that you can shop on budget and find suitable options that suit your wallet while saving in the process.
O2 Black Friday
O2 has amazing Black Friday deals which you can grab. You can find the perfect deal and enjoy a bargain across selected devices, tariffs, SIMs and accessories at O2. Create a flexible plan and enjoy massive savings, as you can tailor your plan and enjoy offers from O2.
O2 Priority
O2 Priority is a loyalty program exclusive to O2 customers offering a range of benefits and perks. You enjoy exclusive discounts and offers at restaurants, entertainment venues and shops. You also get fast track access, and early ticket access at selected events and venues.
O2 student discount
Are you a student who fancies a new phone, then just register and confirm your student status. You will get 20% off your airtime plan when you buy a connected phone. You also get 20% off accessories including other discounts and deals you wouldn’t want to miss.
