Diono Coupons, Promo Codes and Deals

Apply all 3 Diono coupons in one click

The Honey extension applies coupons at checkout and adds the best one to your cart.

3 Available Coupons

  • 15%OFF
    TOP COUPON
    15% off on $150+ purchase
    15% off discount
    $150 minimum
  • Earn
    5%
    Cash Back on eligible Diono purchases
    *Reward based on subtotal of
    (excludes taxes & fees). Honey account required. Terms apply.
  • 3Codes
    ADD HONEY
    Automatically apply all 3 codes at checkout with one click
  • 20%OFF
    COUPON
    20% off on $200+ purchase
    20% off discount
    $200 minimum
  • 20%OFF
    COUPON
    20% Off Radian 3RXT Safe+® With Code 3RXTSAFEPLUS20 at Diono.CA!
    20% off discount

5 Available Deals

  • $100OFF
    Deal
    Save $100 on the Radian 3RX Latch at Diono.com!
    $100 off deal
  • $100OFF
    Deal
    Get the Radian 3QX at $100 Off at Diono!
    $100 off deal
  • $250OFF
    Deal
    Save $250 On Radian 3RXT Bonus Pack At Diono.com!
    $250 off deal
  • 20%OFF
    Deal
    Save 20% Off on the Monterey 5iST FixSafe at Diono.com!
    20% off discount
  • Sale
    Deal
    Buy 2, Get 1 Free ($299 value) on the Radian 3RX Latch

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More Information from Diono

We try to make sure all the info shown here and under “FAQs” is accurate. However, all details, including specifics around store programs, policies, offers, discounts, incentives, and rewards programs, are provided for informational purposes only, subject to change, and may be inaccurate or out of date. You can check the store site for the most current info and full details.

Coupon CodesTotal OffersBest Discount
3920%
FAQ's
Does Diono have any working coupons right now?
We recently found 3 active coupons at Diono. To see if the codes are still active, add items to your cart and we’ll see if they can apply to your purchase.
How much can I save at Diono?
In the last 30 days, Honey members have saved on average $108.85 at Diono. The most recent successful savings were found by the Honey browser extension 5 hours ago.
How can I look for the deals at Diono?
You can use the Honey browser extension to automatically apply the best coupons we find at checkout. Or you can manually copy and paste the codes when checking out on the Diono site to see if they work for you.