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O2 Discount Codes

Find mobile phones and SIM plans at o2.co.uk and save with these discount codes.

Complete List of Current O2 Discounts & Promotions

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Editor's tip:

£367
OFF

Everything up to £367 Cheaper in the Sale at O2

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Editor's tip:

📦 Free Delivery at O2

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Editor's tip:

£200
OFF

Save up to £200 a Month with O2 Priority

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Editor's tip:

20%
OFF

🎓 20% Student Discount at O2

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25%
OFF

25% Off for NHS Staff & Key Workers at O2

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£5
OFF

£5 Free Credit at O2

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Editor's tip:

10%
OFF

Get 10% of Your Top-Ups Back with My O2

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Editor's tip:

from
£19.99

Explore All SIM Only Deals at O2 - Prices Start from £19.99 Per Month

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Get the O2 Essential Plan for Just £10 a Month

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🖤 Overview of all O2 Black Friday Deals

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Editor's tip:

  • Offers:

    11

  • Total Discounts:

    11

  • 🥇 Best Discount:

    £367

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  4. How to use a promo code at O2

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Frequently asked questions
  • Does O2 offer free shipping?

    Yes, O2 provides free standard delivery on all devices, SIM cards, and accessories to mainland UK addresses. Orders for phones, tablets, or items over £40 placed before midnight Sunday to Thursday qualify for free next-working-day delivery. Free delivery for SIMs and accessories under £40 typically takes 2–3 working days.

  • Does O2 offer installment plans?

    Yes, O2 offers 0% APR installment financing on handsets, tablets, smartwatches, and select tech hardware through Custom Plans. You can choose repayment durations from 3 to 36 months, set an upfront payment amount, and pay off the remaining device balance at any time without penalty.

  • Does O2 have a loyalty programme?

    Yes, O2 runs the Priority loyalty programme, free for all mobile and Virgin Media broadband customers. Priority gives you 48-hour early presale ticket access, weekly perks like £1 Greggs items and discounted Vue cinema tickets, exclusive prize draws, and VIP access at the company's entertainment venues.

  • Does O2 offer a student discount?

    Yes, O2 offers a 20% discount on Airtime Plans for phones, tablets, and mobile broadband to students verified through UNiDAYS, TOTUM, or the UNiDAYS GRADLiFE app. Students also get 20% off selected mobile accessories when paying upfront.

  • How can I get a discount at O2?

    You can get a discount at O2 through several programs: students get 20% off Airtime Plans and accessories via UNiDAYS or TOTUM; and Multisave gives 20% off Airtime for additional Pay Monthly connections on family accounts. Promo codes can also be entered in the online basket before checkout.

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How to use a promo code at O2

Shopping at O2 is even better with a promo code. Follow the steps below to save on your order.

The O2 basket page is shown. Below the list of items, there is a section with the heading 'Got a promo code?' containing a text field labelled 'Promo code' and an 'Update' button next to it.
Enter the promo code into the field labelled 'Promo code' and click 'Update' to apply the discount.
  1. 1 Browse the O2 selection and add your chosen item to the basket by clicking the "Select and continue" button.
  2. 2 Once you have found all the items you need, go to your basket to review your order.
  3. 3 Look for the section headed "Got a promo code?" and locate the field labelled "Promo code".
  4. 4 Type your O2 promo code into the field and click "Update". The discount will be deducted from your total.
  5. 5 Proceed to checkout, enter your delivery details, and confirm your order to complete the purchase with your O2 promo code applied.

We're confident that we have all O2 coupon codes, up to date until 10 October 2026. If we're wrong, please let us know. Submit a Discount Code.