Firehouse Subs Coupons & Promo Codes for September 2026

Firehouse Rewards members can get 50% off their orders on Thursdays thru Sundays this month. Log into your account (it's free to join) and redeem this offer via the "offers" section. Shop Now at Firehouse Subs

Firehouse Subs Rewards members can get a free medium sub with the purchase of a medium sub using promo code "EXTRA" whenever a weekend MLB game goes into extra innings. The offer is redeemable Monday through Wednesday following the qualifying weekend, only through the Firehouse Subs app or website. A Firehouse Rewards account is required to take part (but it's free to set up). Shop Now at Firehouse Subs