Updated23 hoursago
Updated23 hoursago
Our discount codes are tested and guaranteed by our teams
Three discount codes and Cashback in June 2025
Three Cashback
12.5%
Cashback on your purchases
+£5 offered upon registration
Three Promo codes
Unlike an offer, a promo code must be entered manually during the online payment process to benefit from the discount. Three discount code: 3 for 2 on selected accessories
Three Offers
Unlike a promo code, an offer is applied automatically according to the conditions defined by Three. Up to £340 OFF Galaxy S25 + FREE Tab A9+
SAVE £480 on the HONOR 400 Pro with Three
Grab this Three offer for up to £832 on the Samsung Z Flip6
Up to £252 OFF the iPhone 16e with this deal
SAVE up to £360 on selected airtime plans for iPhone 14 refurb
SAVE up to £876 when you trade-in for Galaxy S25 Edge
Expires on 22 Aug 2025
Gifts worth up to £339 with Motorola Razr 60 Ultra purchase
Expires on 22 Aug 2025
Trade-in for up to £674 OFF Motorola Razr 60 Ultra
Expires on 22 Aug 2025
Sign up to Three+ Rewards for special offers and gifts
SAVE up to £372 on airtime plans with this Three offer
Expires on 22 Aug 2025
SAVE up to £444 on the Samsung S25 Ultra with Three
Expires on 9 Aug 2025
Enjoy up to £385 OFF iPhone 16 Pro
Expires on 9 Aug 2025
Shop the Pixel 9 Pro for up to £388 OFF
Expires on 9 Aug 2025
Up to £372 OFF iPhone 15s with Three
Expires on 9 Aug 2025
SAVE up to £324 on the Galaxy A56
Expires on 9 Aug 2025
Trade-in for up to £546 OFF the iPhone 16 Pro
Expires on 23 Jul 2025
Enjoy Unlimited Sims from just £20 a month
FREE Fitbit Charge 6 with the Google Pixel 9a
Expires on 23 Jul 2025
Switch to Three Home Broadband and they'll pay your final bill!
Expires on 23 Jul 2025
Get Home Broadband from just £21/m
Expires on 23 Jul 2025
SAVE £324 on the Samsung Galaxy S25 with Three
Expires on 4 Jul 2025
Trade-In for up to £431 OFF Pixel 9a
Expires on 4 Jul 2025
Up to £342 OFF iPhone 16 with Three
Expires on 4 Jul 2025
£360 OFF the Google Pixel 9
Expires on 4 Jul 2025
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25 offers Three tested and guaranteed by our teams
Our cashback and gift cards are updated regularly to offer you the best rates. Each promo code is tested by hand by our teams.
Updates from our teams
Liam added a promo code23 hours ago- Liam added an offer23 hours ago
- Liam added an offer23 hours ago
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Find out about Three voucher codes and offers
Summary
Our top ways to save on your next Three contractHow do I apply a Three discount code to my purchase?Is there a Three student discount?Can I save more by referring a friend to Three?How can I save by trading-up with Three?How can I save more with Three by connecting additional plans?
Our top ways to save on your next Three contract
If you want to unlock the best Three discount codes and offers right now, then you're in the right place. We stay up to date with all their latest deals and post them to the list above to make saving simple. Plus you can activate cashback with Widilo to get a little of every purchase you make back and into your money pot. Here's the best ways to save on your new contract or sim card: • Trade-up - If you're looking for an upgrade, trading-up to a new handset is a great way to save big on your next phone. • Promo codes - Three's discount codes are not always available and usually only applicable to specific products. So if you see one you want to use, snap it up quickly! • Connect together - Connecting your Three contracts will allow you to save a little bit more on each of the ones you put together. It's the perfect offer for families! • Three Rewards - Once you've got your contract, make sure you sign up for Three Rewards to unlock exclusive benefits and offers. • Extra savings with cashback - Activate cashback to get a percentage of your Three order back and into your money pot too!
How do I apply a Three discount code to my purchase?
Applying a Three discount code to your order is very quick and simple to do and it can help you save huge amounts each month. Stick with Widilo and find out how to you can to advantage of this now: 1. First you need to head over to Widilo and you will find the best Three discount code available. 2. Once you have selected your chosen Three promo code, copy the code and Widilo will take through to the Three website. 3. Spend some time exploring the Three mobile and broadband deals, making sure you find the perfect one for you. 4. Create a Three account or login to your original Three account if you are an existing customer. 5. Finally, upon deciding your perfect Three deal for you, ensure that you slot the Three voucher code into the promo code box. 6. Get excited because you have saved on your brand new phone or broadband by using a Three discount code from Widilo.
Is there a Three student discount?
Yes, Three offers an exclusive discount to eligible students to help you save on your mobile phone plan. Whether you want an entire smartphone upgrade, or just a new SIM card for less, Three’s student discount is the best way to unlock huge savings. Three’s student discount is not supplied by a third party, so if you want to claim one you’ll have to go through Three directly. We’ll take you through how to below. 1. First things first, click the deal above to be taken to Three’s website. 2. Next, navigate to the student discount page. You can get there easily by clicking Shop on the top bar and then the link that appears in the drop-down menu. 3. Here you’ll see that to claim your discount you’ll need to provide verification in the form of your academic email address. Type it into the box and click View Discounts. 4. You will soon receive an email from Three asking to verify your address, so follow the steps to do so. 5. You’re now all set to enjoy the incredible student offers from Three!
Can I save more by referring a friend to Three?
One of the best ways to save with Three is to refer a friend to them. When you refer a friend, you’ll both get an extra bonus to spend on your favourite products - which is something neither of you will want to pass up! Of course, in order to do it you’ll already need to be a Three customer - if you’re not one yet, just browse our offers to see all the other ways you can save anyway! By far the best refer a friend payouts are for Pay Monthly Phone Contracts, Home Broadband and Mobile Broadband. Each of these delivers the same amount split between you and your friend, so if you know someone looking to switch to Three, don’t waste time taking advantage of the offers. Other referral options include Pay Monthly SIMs and Tablets, which won’t get you as much but are still more than worth it. You can refer as many friends as you’d like to Three, so theoretically the savings are endless! It’s the perfect way for existing customers to enjoy more savings.
How can I save by trading-up with Three?
One of the best ways to save on your new mobile contract with Three is by trading-up from your old handset. If you want the latest smartphone tech for less, then you won’t want to miss the savings you unlock by trading in your old one. It doesn’t matter whether you’re more of an iPhone or Android kind of person, it’s the best way to unlock an incredible deal from Three. Just how much money you save by trading-up depends on both the smartphone you’re trading in, and the one you want to trade for. You’ll enjoy a much bigger discount from flagship models like the Galaxy Ultra or iPhone Pro Max than you would less expensive ones. Still, no matter what phone you want to trade-in, you’ll get a much better deal by doing so than you would otherwise. Just because your phone is cracked or damaged doesn’t mean you’re excluded from the offer. While the value of your trade does depend on the condition of your device, you can still get a discount even if it’s completely broken. That combined with the latest Three promo code makes it easy to get your next phone for an incredible price.
How can I save more with Three by connecting additional plans?
By connecting your family’s plans to your existing Three plan, you unlock a special discount to help you save more. Whether it’s your mobile phone plans or your WiFi, it’s the best way to save more on your favourite devices without a Three discount code. On top of that, you can manage all your plans in one place via the Three app and give everyone access to exclusive benefits through Three+ rewards. Both new and existing customers get to enjoy Three’s connections discount, and it’s easy to get started. If you’re already on a Three plan, then simply log into your account and purchase another one to get the offer applied to your bill automatically. If you’ve not joined Three yet, then you don’t have to waste any time enjoying the discount too. It will activate automatically when you purchase two or more plans at once! Don’t forget to check for the latest Three promo codes before you check out to ensure you get the best savings possible!
Do you have any questions?Do you want to know more about Widilo, cashback or promo codes? Visit our FAQ.
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