What's the biggest Dunkin' discount right now?

Of the deals listed here, the biggest is 100% off: Free Medium Coffee at Dunkin' Today (October 21st Only).

Do Dunkin' deals need a promo code?

None of the 1 active deals here needs a code; they apply at the listed price.

How often are new Dunkin' deals posted?

The most recent was posted October 21, 2026, and 1 of the deals here went up in the last 30 days. We post deals as soon as they pass our checks.

Dunkin'

1 deals

All Dunkin' Deals

FREE

Dunkin'Oct 21

Free Medium Coffee at Dunkin' Today (October 21st Only)

Free Medium Coffee

Dunkin' is reportedly giving away 1 million free medium coffees — hot or iced — on October 21st. To grab yours, you'll need to be a Dunkin' Rewards member and watch for a special promo code that drops in the app. How to get your free coffee: Sign up or log in to Dunkin' Rewards Watch for the promo code to appear in the Dunkin' app around 12 PM ET on October 21st Claim the code quickly — it may go fast with 1 million up for grabs Once claimed, you'll have a few days to redeem your free medium coffee Note: The promo code has not been released yet. Check back here for updates once it drops.

Common questions

What's the biggest Dunkin' discount right now?: Of the deals listed here, the biggest is 100% off: Free Medium Coffee at Dunkin' Today (October 21st Only).
Do Dunkin' deals need a promo code?: None of the 1 active deals here needs a code; they apply at the listed price.
How often are new Dunkin' deals posted?: The most recent was posted October 21, 2026, and 1 of the deals here went up in the last 30 days. We post deals as soon as they pass our checks.