Looking for an Avis coupon code? When you reserve your car online, you can save money if you use an Avis coupon code. Avis is well known for their weekly rental and weekend coupon codes and deals. Don't overpay, save money with our curated list of the best Avis coupons and promo codes. Remember, Avis donates up to 2% of your car rental charges to your favorite cause on GoodShop.