5% Off✦ Verified
5% off
5% Off Japan Rail (members Only) at KKday
85% chance
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Save at KKday with verified coupon codes, promo codes and exclusive offers.
6
Codes
5
Verified
15% Off
Best Deal
Updated Aug 15, 2026 · 5 verified
Best code right now
12% off
Daily average across every live code, tracked automatically — not a one-time snapshot.
69%
4/6 strong
Verified — confirmed working
5% off
5% Off Japan Rail (members Only) at KKday
15% off
15% Off Storewide at KKday
5% off
5% Off Select Items at KKday
12% off
12% Off Glow up in Korea (members Only) at KKday
More codes — may have expired
5% off
5% Off Storewide (valid Only on Android App, Ios App) at KKday
TrulyThrift currently tracks 6 KKday coupon codes, of which 5 are verified working. The best available discount right now is 15% Off. Page last verified Aug 15, 2026.
Save at KKday with verified coupon codes, promo codes and exclusive offers.
Visit KKday ↗| Offer | Discount | Type | Status |
|---|---|---|---|
| 12% off | 12% Off | Percent | Verified |
| 5% off | 5% Off | Percent | Verified |
| 15% off | 15% Off | Percent | Verified |
| 5% off | 5% Off | Percent | Verified |
| 12% off | 12% Off | Percent | Verified |
| 5% off | 5% Off | Percent | Unverified |
Truly Thrift verifies KKday codes through a three-layer system: automated checkout testing, cross-source corroboration, and real shopper reports. Verified codes show a green badge; other codes show their recent chance of working. Code health is a per-code reliability score built from that evidence — right now the 6 codes listed for KKday carry an average code health of 69%. Read our full verification process for details across every store.
Direct checkout testing currently covers Shopify storefronts, with more platforms rolling out over time. Until KKday is covered, Layers 2 and 3 below carry more of the weight for this store's codes.
For codes we can't test directly, we check whether independent coupon listings still show the same code as active. If independent sources agree a code is gone, we downgrade or hide it — even before a shopper reports back.
Every "Worked" / "Failed" button on this page feeds straight into these codes' scores. No shopper reports have come in for KKday this week yet — yours would be the first.