O2 Promo Codes & Coupons - June 2026

Get £13.99 off with O2 Discount Code

GA05983-GB

Save £40 Upfront on 3GB+ Tariffs Use The Voucher Code upon Checkout

FORTYOFF

20% Student Discount at O2

50% Off Phone Case With Samsung Handset Orders at O2

NCCASE50

Get 20% off airtime and more if you're a student at O2

Up to 25% off Airtime Plans for NHS Staff and Teachers with O2 Open at O2

10% of your top-ups back in O2 Rewards

30% Off your order

O2CRYSTAL30

Buy more, save more with up to 30% off air up scent-based drinking systems

Final hours: save up to 50% on more to spend on the stuff you love

Clearance phones, accessories, and more for up to 50% off

Download the O2 app and get an extra £70 off like-new mobile phones

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Take advantage of 50% OFF with 30 active O2 Voucher Code. Hurry, these O2 coupons for December 2025 won't last long!