Sometimes. It depends on where you fly.
On the 597 days we compared, Discount Den was cheaper on 596 of them (100%), by $14 on average. Count the days it saved nothing and that's about $14 per one-way trip.
A quick test: divide Frontier's current yearly fee by $14. That's roughly how many one-way trips from St. Louis a year, booked close to departure like these, before the membership pays for itself.
Paid off most often
- Atlanta: 100% of days, $1 when cheaper
- Cancun: 100% of days, $1 when cheaper
- Dallas/Fort Worth: 100% of days, $4 when cheaper
Barely helped
- Atlanta: 100% of days, $1 when cheaper
- Cancun: 100% of days, $1 when cheaper
- Dallas/Fort Worth: 100% of days, $4 when cheaper
Since oct 26. Fares we saw on checks made 0 to 2 days before departure (0 to 10 for Cancun and Punta Cana). Fares booked further ahead can be different.