<p data-start="2626" data-end="3253">Joining theFrontier Airlines Discount Den is a straightforward process. During flight booking, you&rsquo;ll be prompted to join if your chosen fare is available at a lower price through the program. You can also sign up directly through Frontier's website. After enrollment, discounted fares are automatically displayed when logged into your account. The membership renews annually unless canceled, and members are notified before the renewal date. It&rsquo;s advisable to keep track of your membership date and monitor upcoming travel plans to make full use of the benefits.