Multibuy Deal

3 for 2 Accessories at Three

3FOR
20% Off

Up to 20% off Student Plans at Three

£832 Off

Up to £832 off Three Mobile Phone Contract Deals

£385 Off

Up to £385 off Selected Airtime Plans at Three

£385 Off

Up to £385 off iPhone 16 Pro at Three

Free Delivery

Free Next-Day Delivery on all orders at Three

£372 Off

Up to £372 off iPhone 15 at Three

Top Tip

Up to £80 Cash to Share When You Refer a Friend at Three

£546 Off

Up to £546 off When You Trade-in at Three

Top Tip

Three 4G Home Broadband

£372 Off

Up to £372 off Samsung S25 Ultra plus Free Galaxy Tab A9+ Worth £259 at Three

Popular Three Discount Codes

Discount Last verified Redemptions
Free Next-Day Delivery on all orders at Three 10 Jun, 2025 Used 2 Times
3 for 2 Accessories at Three 10 Jun, 2025 Used 101 Times
Up to 20% off Student Plans at Three 10 Jun, 2025 Used 16 Times
Up to £832 off Three Mobile Phone Contract Deals 10 Jun, 2025 Used 3 Times
Up to £385 off Selected Airtime Plans at Three 10 Jun, 2025 Used 1 Time

Three FAQs

▷ Can I get a Three discount code?

No, discount codes are rare at Three. Instead, you can save money at Three in plenty of other ways, including:

  • Flash sales on SIM-only plans
  • Discounts on the hottest handsets
  • Limited-time sales on pay monthly.

Register for Three email updates to stay in the loop with savings. Currently, there are 11 active deals available across June.

▷ How do I get a free Three Mobile SIM?

To get your free SIM, go to the Three website. Go to 'shop' and then click 'free SIM'. Simply fill in your details and get your free SIM in just a few days. Install the SIM in your phone and activate it to start using it.

▷ When is the Three sale?

Three holds sales at various points throughout the year, although the biggest sales are around Black Friday, Cyber Monday, January and August for back to school. Find all the details here at Savoo or go to the Three website and browse the featured deal banners on the homepage.

▷ On average how much can users save with a Three deal?

Typically, using a Three deals and offers can save users anywhere an average of 20%.

▷ When is the best time of year to redeem a Three discount code?

Our expert data shows that November and February are the best months to grab a bargain at Three, with significant deals launching around Black Friday, Cyber Monday, and early in the new year.

▷ Does Three offer Black Friday deals?

Yes! Three consistently participates in Black Friday and Cyber Monday, offering huge savings on mobile phones, SIM plans, and broadband deals. Black Friday deals tend to be in the form of sales and offers, rather than discount codes.

Examples of past Black Friday deals include:

  • Up to £635 off Black Friday Deals at Three

  • £200 Off Samsung Galaxy S21 Ultra

  • Half Price on SIM-Only Plans – Black Friday Exclusive

  • Free Wireless Earbuds with Selected Black Friday Purchases

▷ What kinds of deals are usually available at Three?

According to Savoo’s expert data, Three focuses more on sales and general discounts rather than discount codes.

Some examples of past deals include:

  • Flash Sale: SIM Plans for Phones from £7 at Three
  • 50% off First 6 Months on Home Broadband Plans
  • Up to £635 off Black Friday Deals at Three

ᐅ How long do you have to be with Three to download and use the rewards app?

It doesn't matter. You could have been with Three for a year or an hour, and you can still access all the rewards on offer. As long as you have an eligible pay monthly or pay-as-you-go plan, you are good to go.

ᐅ Does Three have an affiliate programme?

Earn some extra cash when you join the Three affiliates programme. You'll get rewarded for sales generated through your website or social media platform. If you have a platform where you want to start spreading the word about the products available at Three, sign up for one of the affiliate programmes and staff to see that commission rolling in, giving you more money to spend on your next phone upgrade.

ᐅ Do I have to buy a new phone if I want a Three plan?

Don't splash out on a whole new device if you already have one that works well. Instead, opt for a SIM only plan that meets your needs. This could be for as short as 30 days, or up to 12 or 24 months. There are also pay as you go options, so you are only ever going to pay for what you are going to use.

ᐅ What is Three Unlimited?

Get truly unlimited data with Three. That means no speed limits, no data caps, just endless streaming and browsing for one set cost. An unlimited data SIM comes with all the data you will ever need, and is available from 1 month up to 24 months. With every plan, you'll also benefit from Three+ rewards, a personal hotspot so you can share your unlimited data with other devices, and all SIMs are 5G ready at no extra cost.

ᐅ Do Three devices come with a warranty?

Many plans come with warranty and screen repair included in the plan price, meaning that if the worst were to happen to your device, you don't have to sweat about paying out for expensive repairs within the warranty period. Extended warranty is available for up to 3 years, so you don't have to sweat about your tech if anything goes wrong.

ᐅ How do I find out more about Three?

Join the Three community and feel fully supported from the moment you enter the platform. The community is a space to learn, support and collaborate with other Three customers. You'll be able to ask questions and find answers about your network or device, and there is a good chance someone else has the same question as you.

How to save money at Three

three-mobile-better-phone-friend.png

There are no end of ways to save money with Three. Whether you are looking for a new device, SIM or broadband, there are deals, Three promo codes and offers for all sorts of plans. Whether you are looking to trade in your own device, are a student, looking for freebies or perks or want to save with a bundle, take a look at the offers available and ensure you are saving the most money when shopping with Three.

Trade in for huge savings

Trade in your old device when you are thinking of upgrading, and you never know, your old device could be worth more than you might think. Trade in and sell your phone to get the value of your old device off your payment for your new device. You could also get the money transferred directly to your bank account. Before anything, you'll get a quote for your old device to see if you are happy, you can then use this to reduce the cost of a new one, get a better deal on an upgrade, or pay off your old device loan. For example, a Samsung Galaxy S22 Ultra could be worth up to £182, or the Google Pixel 7 up to £90.

Grab a freebie

Get your hands on free gifts with select purchases from Three, and we are not just talking about a free chocolate bar. Some of the best deals include incredible freebies such as free Galaxy Buds3 Pro worth £219 when you purchase a Samsung Galaxy S25 Ultra, or a free Fitbit with the purchase of select devices, so it is worth checking out what freebies are available before making a purchase.

Get your final bills paid

Switch to Three broadband, and the company will pay the final bill from your old provider, up to the value of £100. So if you are thinking of switching, you might as well do it sooner rather than later and lock that new price in. The offer is available to anyone who takes out a new 24-month 4G or 5G home broadband contract, and the credit will be applied to your new account within 30 days of submitting your final bill.

Stay flexible

Get the ultimate flexibility with a Three Your Way plan. Don't let the company determine how much you have to pay every month. You can choose how much you want to pay up front, and then spread the cost of your device over 12, 24, or 36 months. There are a range of plans available depending on your budget, from Lite all the way up to Complete, so you can decide what added extras you want as part of your plan.

Get first dibs

As a Three customer, you can get ahead of the crowd and benefit from presale tickets, access to some of the UK's hottest festivals, gigs and shows. Rest assured that when some of your favourite acts are in town, you'll be able to get to the front of the queue to get tickets. Chelsea offers Three have partnered up with Chelsea FC to bring you a range of perks, which is particularly exciting if you are a fan. You could get 2 for 1 tickets to women's matches and win tickets to every home league match for both men's and women's matches. As a Three customer, you'll get 50% off stadium tours, have the chance to win some epic experiences, and get 10% off cool merch, from PJs to match day kits.

Download the app

Manage your account on the go with the Three app. Download the app for free from the App Store or Apple Store and track your bills and usage on the move. You'll also be able to top up and choose add-ons if needed, and check out any new deals. You can also set up and find the best place for your home broadband hub with the real-time signal strength indicator. The app is also a great place to discover exclusive customer offers and get help and support. It is all only a few taps away.

Pay as you go

Choose a pay-as-you-go SIM for plenty of perks, plus you will also only pay for what you are actually using. All data packs give you better value than top-ups, plus unlimited minutes and texts are thrown in as a bonus. All packs also come with inclusive roaming in over 72 countries. Set up auto-renew when you run out of data and save 10%, but rest assured you can cancel at any time, or pay up front for 3 months for one of the best value data packs.

Choose your free SIM

If you fancy trying the Three network but are not ready to commit, order a free pay-as-you-go SIM and buy your top-up or data pack at a later date. With no commitment, you can see if the Three network is the right fit for you, while still getting perks like data roaming and access to the Three+ rewards app. Try your luck in a competition Keep a look out for the exciting competitions and opportunities run by Three for their customers. Whether that is the chance to win festival tickets to spice up your summer, or a family coaching day with partners Chelsea FC, there are some cool opportunities out there where you could try your luck.

Person using smartphone

Shop wholesale

Buying for a business? Buy in bulk for tailored pricing and packages to meet your business needs. The wholesale packages provide an award-winning network to partners, with a range of connectivity options available. There are SIM-only deals for as little as £10 a month per SIM, boardbrand business deals with no upfront cost and so much more. With a business plan, the more unlimited SIMs you purchase, the cheaper the price. Pay £17 per SIM a month for an individual SIM, compared to £7.50 a month when you buy more than 20. Get in touch with the team to discuss your business needs, and you won't be disappointed.

Bag a bundle

Get the most for your money with a Three bundle. You'll not only get a new phone, but also all the accessories you need for one great price. There are Galaxy bundles that come with the phone, plus smart watch, buds and tags. iPhone bundles come with screen protectors and cases, or there are Samsung or Android bundles, all for a lot less than if you were buying each item individually. 3 for 2 on accessories Get three accessories for the price of two, so you can stock up on those added extras, or choose some as gifts, for one great price. Accessories include power banks and chargers, as no phone battery lasts forever, screen protectors and cases, audio and more. Just use code 3FOR2 at the checkout of qualifying items.

Get a phone for a fraction of the price

Save some money on the latest tech when you choose to buy a refurbished device, with savings of up to £158 when compared to the cost of an equivalent new phone. Don't worry, all refurbished phones are like new, and when they say like new, they certainly mean it. All devices go through a 65-point quality check, plus they come with a 36-month warranty for peace of mind. Every like new device also comes with a 14 day cooling off period, so if you are not happy with your handset, you can return it.

Discover the latest offers

With a whole page dedicated to the latest Three offers, you won't have to look very far to find a way to save or get some extra perks. You can discover unmissable savings and some of the lowest ever prices with phone deals, pay-as-you-go offers, tablet and laptop deals and broadband offers. You'll find a lot of the trending deals first, such as saving up to £546 when you trade in, getting unlimited data for only £20 a month, and claiming a free Fitbit Charge worth £139.99. You'll find iPhone, Samsung and Android offers, deals on broadband, such as Three paying your final bill, Three sales, and *20% savings as a student. *

Upgrade whenever you want

Whether you are looking for something shiny and new, or have decided it is time for a new plan, there are plenty of upgrade deals for existing customers to get their hands on. You can upgrade your device whenever you like, as long as you have been with the company for 90 days. You'll be able to find personalised offers in your My3 account, so all you have to do is pick the one you like the look of.

Business price promise

If you are a business and are looking for a Business Plan with Three, the team are not just offering a price match, but if you find a better business contract on EE, Vodafone or O2, Three will beat it by at least £1 per month. The price promise is for everyone, whether you are a new customer or who is already with Three, you'll be sure to find a great deal on all business phone, broadband, and SIM only plans.

Browse the blog

Stay updated about all things Three tech and news when you read the Three blog. Explore device reviews so you are fully informed when you make a purchase, tips and advice on a range of subjects, updates on the latest technology, company news and more. You'll be able to find the best phones for battery life or the best lightweight smartphones with ease. Browse articles on how to keep your phone safe from cybercrime, and how to switch but keep your old number. There is so much info in the blog, so grab a cup of tea and have a browse.

Get your goods delivered for free

*Get free next-day delivery on all orders, no matter how much or little you spend. * Whether you add a charger to your basket or a whole new device, rest assured it will be at your front door the next working day, at no extra cost, so you can start using it right away. Just ensure you place your order before 20.00 to get it the next day. If you order online, you can also choose to pick it up from a store near you.

How to use a Three discount code

  1. View the Three discount codes at Savoo
  2. Select the code that looks right for your needs
  3. Click on the code, copy it, and click through to the Three website
  4. Shop for your new mobile, plan, or tech
  5. Add what you want to your basket
  6. Start the checkout process
  7. Paste your discount code when prompted
  8. Pay for your reduced order

Recently Expired Three Discount Codes & Deals

Three 4G Home Broadband
Up to 60% off Three Winter Sale
Apple iPhone 11 64GB for £12.50 a Month at Three
Cyber Monday: Exclusive Deals at Three
Up to £635 off Black Friday Deals at Three