We track store-wide promotional codes for Lifetime fitness so you can get a discount from us at anytime. The best way to save money is using the single-use coupon codes. Single-use coupon codes are good for only one purchase, and our community shares single-use codes for Lifetime fitness and thousands of other retailers. Because they expire quickly, you may need to try a few single-use codes before you find a code that works. Sometimes, single-use codes are the only way to save at Lifetime fitness.