O2 Promo Code & Discount Code October 2025

Premium Offer
Deal
SIM Only Deal: £8/32GB | O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Save 20% on Selected MagSafe cases at O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Get 25% Off Selected Airtime Plans with O2 Open at O2

Ends 31 October

Ends on 31 October 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
SIM Only Deal: £9.50/50GB | O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Get 5% Off Selected Bundles with O2 Promo

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Get up to £360 On the Samsung Galaxy S25 Ultra 512GB at O2

Ends 5 November

Ends on 5 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Enjoy £144 on Galaxy A26 5G at O2

Ends 5 November

Ends on 5 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Get up to £288 iPhone 14 at O2

Ends 31 October

Ends on 31 October 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
20% Off Plans for Students with This O2 Promo

Ends 30 October

Ends on 30 October 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
SIM Only Deal: £16/250GB | O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
SIM Only Deal: £10/70GB | O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
SIM Only Deal: £14/175GB | O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice
Deal
Save Up to £480 Across 48 Months on Selected Products at O2

Ends 1 November

Ends on 1 November 2025

Valid every day

Terms and Conditions
  1. Cannot be used in conjunction with any other offer
  2. One per person
  3. For full Terms & Conditions please see website
  4. Available whilst stocks last
  5. All brands reserve the right to remove any offer without giving prior notice

FAQs from O2

What's the biggest discount I can get at O2?

O2 regularly offers substantial discounts on flagship devices, often saving you hundreds of pounds during promotional periods. The exact amount varies depending on current offers and the specific device you're interested in.

Can I get O2 Priority benefits without being a customer?

Yes, it's possible. By ordering a free Pay As You Go SIM and activating it with a £10 top-up, you can download and use the Priority app. Many users find the app continues to provide access to perks like concert pre-sales and food discounts even after they switch back to their primary SIM.

How much can NHS staff save on O2 plans?

NHS workers can save up to 25% on airtime plans through O2 Open. You'll get 25% off plans with 3GB or more data, and 15% off plans with less than 3GB. You must apply within 28 days of starting your O2 Refresh contract.

Does O2 offer 0% interest financing?

Yes, O2 offers 0% APR financing over 12, 24, or 36 months. This makes premium devices much more affordable, with tablets starting from as little as £5 per month and no interest charges added to your payments.

What free gifts come with O2 phone purchases?

O2 offers various free gifts depending on your contract value and current promotions. These can include gift cards, free accessories worth £200+, or months of free airtime with select purchases.

How does O2 Multisave work?

O2 Multisave gives you 20% off the airtime for each additional Pay Monthly connection you add to your existing account, and this works for up to 20 devices. It's perfect for families or anyone managing multiple lines.

Can students get discounts at O2?

Yes, students get 20% off O2 airtime plans and 20% off selected accessories. You'll need to verify your student status through UNiDAYS, UNiDAYS GRADLiFE, or TOTUM to access these savings.

What's included in O2 Priority membership?

O2 Priority members get 48-hour early access to concert tickets, free weekly Greggs snacks, discounted Vue cinema tickets with 20% off snacks, Disney+ savings, and access to various food, drink, and entertainment discounts through the Priority app.

How much extra do I save by downloading the O2 app?

You'll get additional savings on like-new mobile phones when you download and use the O2 app. It's a quick and easy way to add more value to your purchase.

Can I get double data if I have Virgin Media broadband?

Yes, existing O2 Pay Monthly customers can get double data (2X) when they also have a Virgin Media broadband plan at the same address. This effectively doubles your data allowance at no extra cost.

What are the opening hours for O2’s phone lines?

O2 customer service phone lines are open Monday to Friday from 8 am to 9 pm, Saturday from 8 am to 8 pm and Sunday from 8 am to 6 pm. You can call the team at 202 from your O2 mobile or 0344 809 0202 from any other phone.

Smart Ways to Save Money at O2

Looking to upgrade your tech without breaking the bank? O2 makes it easy to get the latest smartphones, tablets, and accessories while keeping more money in your pocket. From device discounts to clever financing options and exclusive member perks, we'll show you exactly how to shop smarter and spend less.

How Do I Use an O2 Discount Code?

  1. Browse O2's website and add your chosen device or plan to your basket
  2. Click on your basket and look for the 'promo code' or 'discount code' field
  3. Enter your code exactly as shown and click 'Apply'
  4. Check that your discount has been applied before completing your purchase
  5. Complete your order and enjoy your savings

Take Advantage of Regular Device Discounts

O2 frequently runs promotional offers on popular devices that are worth timing your purchase around. These deals typically offer hundreds of pounds off premium smartphones and tablets, making flagship technology much more affordable.

The key is planning your purchase around these promotional windows rather than waiting and potentially missing out. O2's device discounts often coincide with new product launches or seasonal sales periods.

Bundle Deals That Actually Add Value

O2's bundle offers are where you can really maximise your savings. When you purchase select flagship phones, you'll often get free premium accessories worth £200 or more thrown in. This could include wireless earbuds, cases, or other tech essentials.

For smartwatch fans, O2 sometimes offers free airtime periods when you purchase wearables. Similarly, new phone purchases with selected tariffs may include months of free airtime to get you started.

Make Expensive Tech Affordable with 0% APR Financing

O2's 0% APR financing is a game-changer for anyone wanting premium tech without the upfront cost. You can spread payments over 12, 24, or 36 months without paying a penny in interest.

This makes budgeting much easier and means you don't have to wait months to save up for the device you want. Popular items like tablets can start from as little as £5 per month, while premium accessories become much more manageable when spread over time.

Unlock O2 Open Discounts for Key Workers and Students

NHS Staff Save Up to 25% on Airtime Plans

NHS workers can save 25% on airtime plans with 3GB or more data and 15% on plans with less than 3GB through the O2 Open programme. You'll need to apply within 28 days of starting your O2 Refresh contract.

Students Get 20% Off Plans and Accessories

Students can secure 20% off O2 airtime plans and selected accessories by verifying their status through UNiDAYS, UNiDAYS GRADLiFE, or TOTUM. This applies to new customers and can lead to significant monthly savings.

Teachers and Military Personnel Also Qualify

Teachers in state schools can get up to 25% off airtime plans using the code "TEACH" via O2 Open, while military personnel and veterans can access the same discount through the Defence Discount Service.

Maximise Savings with O2 Multisave

If you're adding multiple lines to your account, O2 Multisave gives you 20% off the airtime for each additional connection - and this works for up to 20 devices. This is perfect for families or anyone managing multiple devices, as the savings really add up over time.

Get More from O2 Priority Membership

O2 Priority is packed with perks that go way beyond mobile savings. Members get 48-hour early access to concert and event tickets, plus ongoing treats like free weekly Greggs snacks, discounted Vue cinema tickets with 20% off snacks, and Disney+ savings.

The Priority app regularly features food and drink discounts, entertainment deals, and VIP experiences that can save you money across different areas of your life.

Smart Shopping Strategies for Extra Savings

Download the O2 App for Additional Discounts

Simply downloading and using the O2 app gets you extra savings on like-new mobile phones. It's a quick win that takes minutes but saves you real money.

Trade In Your Old Device

O2's trade-in programme lets you get cash or credit towards a new device when you hand over your old one. Plus, with the O2 Switch Up programme, you can swap to a new phone every 90 days if you're someone who likes staying current with the latest tech.

Look Out for Clearance Deals

Keep an eye on O2's clearance section where you can find up to 50% off phones, accessories, and more. These deals change regularly, so it's worth checking back frequently.

Combine Virgin Media for Double Data

If you're a Virgin Media broadband customer, you can get double data (2X) on your O2 Pay Monthly plan when both services are at the same address. This effectively doubles the value of your data allowance without paying extra.

Free Gift Cards with New Contracts

O2 regularly offers gift cards with new contracts, and the amounts vary based on your plan value. Higher-value contracts typically come with more generous gift card rewards, making them an excellent way to offset your initial costs or treat yourself to something extra.

Refer a Friend for Amazon Vouchers

Both you and your friend can earn £25 Amazon vouchers when they purchase a phone, tablet, or mobile broadband with an O2 Refresh tariff and Pay Monthly contract directly from O2. It's an easy way to save on your next Amazon purchase.

How to Get in Touch with O2

O2 offers multiple ways to get support and manage your account. You can use their store locator to find your nearest physical location, access your My O2 account online for plan management, or use their order tracking service to keep tabs on deliveries. Their customer service team can help with any questions about current offers or technical support.

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