Frontier started flying non-stops on two of my regular routes in January. I was delighted to have some other options and being a tall guy, was even more delighted with the Classic Plus Stretch Seating. I have since purchased Classic Plus twice, once a couple weeks in advance and once on short notice. Both times the ticket was about $220, compared to sub $100 Economy prices.

This week, I went to purchase several more tickets, and the Classic Plus pricing on the 2 routes had jumped from $220 to $450, even for very advanced purchases. Moreover, the price was the same on both routes (one about 50% longer than the other). I was a bit surprised, given that some of the Economy tickets were priced at $60. I'm not complaining, rather wondering if a Frontier veteran can comment on or explain typical Classic Plus pricing. I'm used to Southwest pricing and know that if you buy less than 7 days out, you'll rarely get a wanna-get-away type fair. Were those initial prices I got some sort of promotion? Is Classic Plus always at a fixed premium or does it fluctuate? How often can you snag a cheaper upgrade? Any input appreciated, thank you!

I noticed the same thing. These prices are across the board and don't seem to vary with the pricing of economy tickets. So, for example, you can get a $50 economy ticket ticket to PHX from DEN, but Classic Plus, is like $435. It used to be that classic plus was priced at some reasonable premium over the lowest econonmy fare on a particular flight. I don't know if this is an anomoly or the new pricing structure.

I'm noticing the same thing. Perhaps it plans on phasing out this fare type. Spirit doesn't offer refundable tickets either.

Stretch Seating can still be added with an Economy fare purchase.

The normal pricing pattern for Classic Plus has reappeared.

Came here to post a follow-up pointing out the same thing. I was able to grab a couple tickets at a more reasonable price. The Classic Plus seats that were still $$$ seemed to be full flights, which makes sense.