O2 Promo Codes | Save 20% off for December 2019 | NME
Updated December 14, 2019

O2 Promo Codes 2019

Stay connected with the best devices at O2. Find a mobile plan that works great for you and your busy life. You can save even more with these active O2 promo codes and O2 discount codes at the checkout.

O2 Promo Codes 2019

12 active discount codes & promotional codes

Updated 14 December 2019

20%
OFF
SALE

Get a 20% student discount on an Airtime plan at O2

Are you heading back to uni? Take advantage of this O2 student discount and save 20% on Airtime Plans.
23 people used this week
GET DEAL

£500
OFF
SALE

Shop Christmas deals at O2 and save up to £500

Check out Christmas deals on phones, tablets, plans and more for discount up to £500 off!
GET DEAL

£25
SALE

Tell a friend about O2 and get £25 in Amazon vouchers at O2

You will get £25 in Amazon vouchers when you friends take out an O2 Pay Monthly contract.
GET DEAL

£10
OFF
SALE

Take £10 off select phone accessories at O2

Pick up Tech 21 phone cases and Zagg screen protectors and Take an extra £10 off!
GET DEAL

20%
OFF
SALE

Find more O2 deals & offers

Check here for more great promotions and discounts on O2 mobile phones and plans.
11 people used this week
GET DEAL

50%
OFF
SALE

Get up to 50% off an O2 family plan

When you have a plan with the entire family, you can save up to 50% off your bill at O2.
GET DEAL

25%
OFF
SALE

Take up to 25% off airtime plan with O2 Open

If your company is eligible for O2 Open, you can get up to 25% off the Airtime plan.
16 people used this week
GET DEAL

FROM
$15
SALE

Get an Apple Watch from O2 for just $15 a month

Enjoy a Series 4 Apple Watch for $15 a month for the first 6 months.
GET DEAL

FROM
£10
SALE

Grab a pay as you go SIM for a minimum of £10 at O2

Grab the classic O2 pay as you go plan for only £10 a month.
GET DEAL

£20
SALE

Get 25GB of data for £20 at O2

Grab these pay monthly O2 sim only deals now with 25GB for £20!
GET DEAL

FREE
DELIVERY
DEAL

Enjoy free home delivery at O2

Order your new O2 device today and get it delivered to your home for free.
GET DEAL

IN STORE
DEAL

Enjoy free click and collect for your device from O2

Order your new O2 phone, tablet, or accessories and collect from your local store completely free of charge within the same day.
GET DEAL

More About O2

O2 Sales

Looking for the best deal on a new mobile is easy when you shop O2 sales. Check out and save on a range of clearance mobile phones and tablets. You can also check out the refurbished list of mobile phones at O2 for more savings! Choose from Monthly or Pay As You Go devices.

Make sure to grab an O2 promo code and O2 discount codes to save on devices such as Apple iPhone, Samsung Galaxy, Huawei, and more.

O2 Methods of Payment

O2 accepts all major credit and debit cards are accepted online when you are purchasing a product. You can also use your PayPal account if you need to top up your O2 mobile.

O2 accepted methods of payment:

  • PayPal
  • Visa
  • MasterCard
  • Masetro or JCB or Debit Card

How to Unlock O2 Phones

If you want to use an O2 mobile on a different network, you will need to unlock the device. It's free to unlock your mobile phone at any time you wish to switch over to another network. The quickest way to unlock is through My O2 online or through the main menu on your My O2 app. It doesn't matter if you are paying monthly or pay as you go customer, you can still unlock any O2 mobile device.