O2 Discount Codes
Active Coupons for O2
Some offers require you to click through to reveal a code, or apply automatically at checkout on the retailer's own site.
Up to 25% off Airtime Plans with O2 Open at O2
25% Off
20% off SIM Only Airtime Plans with Multisave at O2
20% Off
£15 Amazon Gift Card with 40GB SIM Only Contracts for £8 at O2
Big Deal
About O2 Promo Codes & Cashback
O2 is one of the UK’s biggest mobile networks, trusted by over 25 million customers for strong coverage, flexible tariffs and consistently good customer service. Beyond phones and SIM plans, O2 customers get access to perks like priority event tickets and bundled access to services such as Disney+ and Amazon Prime Video.
Whether you are upgrading your phone or switching networks entirely, an O2 discount code can help you land an even better deal on your next contract or SIM plan.
How to Save at O2
- Apply an O2 discount code at checkout to reduce the cost of a new phone, SIM or contract.
- Sign up for O2 rewards to earn credit back on your top-ups if you are on pay-as-you-go.
- Compare SIM-only deals against full contracts, since SIM-only plans are often cheaper if you already own a phone.
Take advantage of O2’s bundled perks, such as access to Disney+ or Amazon Prime Video, when comparing overall value rather than just looking at the monthly price. Priority ticket access can also be worth factoring in if you regularly attend gigs or events.
O2 FAQs
Does O2 offer rewards for pay-as-you-go customers?
Yes, O2 rewards can earn pay-as-you-go customers credit equal to a percentage of their top-up every quarter.
What perks come with an O2 plan?
O2 customers can access priority benefits like early access to gig tickets, along with bundled access to services such as Disney+, Amazon Prime Video and Audible.