O2 Promo Codes & Coupons - July 2026

-20%
Get 20% off airtime and more if you're a student at O2
-25%
Up to 25% off Airtime Plans with O2 Open Sign-Up
￡70
Download the O2 app and get an extra £70 off like-new mobile phones
￡100
Verifed
Save £100 with This O2 Promo Code for Your Upgrade
NCPL56M
-50%
50% Off Phone Case With Samsung Handset Orders at O2
NCCASE50
-25%
Up to 25% off Airtime Plans for NHS Staff and Teachers with O2 Open at O2
Take £13.99 off using O2 Promo Code
NCU3I8
Take £100 Off Your Order
NCISE3
Get 50% Off New Ipad With Coupon Code
TABLET50OFF
Enjoy 25% on plans with student discount at O2
Get £13.99 off with O2 Discount Code
GA05983-GB
20% off O2 Student Discount

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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!