Frontier Offers Fly One Get One Miles & Free Discount Den for Spirit Flyers

Carlos Rodríguez · 2026-05-07

Frontier Airlines just rolled out a limited-time deal that feels like a lifeline for travelers left in the lurch by Spirit Airlines' recent changes. If you were a Spirit customer, this one's for you. We're talking about a "Fly One, Get One" bonus miles offer plus a waived enrollment fee for Discount Den. That's two solid perks that can save you real money on your next trips. ### What's the Deal Exactly? Here's what Frontier is putting on the table: - **Bonus Miles**: Book one flight and earn double miles for that trip. So if you fly from Denver to Orlando, you'll get miles for both segments plus a matching bonus. - **Waived Discount Den Fee**: Normally $59.99, but former Spirit customers can join for free. That's a $60 saving right off the bat. - **Exclusive Access**: Discount Den members get first dibs on sales and lower fares throughout the year. This isn't just a random promotion. It's a targeted move to win over Spirit's loyal flyers who might be feeling stranded.  ### How to Grab This Offer You don't need to jump through hoops. Just head to Frontier's website and look for the Spirit customer landing page. You'll need to verify your previous Spirit loyalty number or show proof of a recent booking. Once you're in, you'll get a unique promo code to apply at checkout. The bonus miles will post to your account after your first flight. One thing to note: this offer is time-sensitive. Frontier hasn't published an end date, but similar deals usually run for a few weeks. Don't wait too long. ### Why This Matters for Budget Travelers Let's be real: air travel can be expensive. Every dollar counts. This offer effectively gives you a free membership worth $60 and doubles your miles on your next trip. If you fly even twice a year, that's a meaningful saving. Think of it this way: with Discount Den, you often save $20 to $50 per ticket on base fares. Over a year, that could add up to hundreds of dollars. Plus, the bonus miles mean you'll earn a free flight faster. ### What About Spirit's Situation? Spirit has been restructuring and cutting routes, leaving many passengers scrambling. Frontier is stepping in with a clear message: we want your business. It's a smart play. Both airlines operate in the low-cost space, so the customer overlap is huge. By offering something tangible—not just a discount code but a full membership—Frontier is building loyalty from day one. ### Quick Tips to Maximize This Offer - **Book a round trip**: You'll get bonus miles for both legs. One-way trips still count, but round trips double your earning. - **Use your Discount Den immediately**: Check for sales before booking. You might find fares as low as $29. - **Stack with other deals**: Frontier sometimes runs flash sales. Combine those with your bonus miles for even bigger savings. - **Watch for expiration**: Miles typically expire after 6 months of inactivity. Set a reminder to use them. ### The Bottom Line If you were a Spirit flyer, this is a no-brainer. Free membership, double miles, and a chance to lock in low fares. Frontier is making it easy to switch. Even if you've never flown Spirit, keep an eye on this promotion. It might expand to all new customers. Either way, it's a great time to test out Frontier's network. So go ahead, grab the offer, and start planning your next trip. Your wallet will thank you.