Forget
physical gift cards for starters. They're clearly
outsourced:
https://www.flyfrontier.com/programs...cards/physical
Please note: Card Fulfillment Services (CFS) is our distribution partner for the physical plastic gift cards, so they'll be the ones communicating with you about your purchase. Watch for messages to come from them instead of from Frontier Airlines.
That leaves only
virtual gift cards, about which they don't say anything about who fulfills them. Maybe it's Frontier themselves, but that's not clear.
https://www.flyfrontier.com/programs...cards/purchase
The virtual gift cards can be bought in as low a quantity as $25, so if you get no answers from anyone else, it might that much to run the experiment yourself. Then if it does happen to work, virtual gift cards can be bought in as high a quantity as $1500.
But I don't see how you earn any Frontier points for it, because nowhere in the virtual gift card purchase process does it ask for your Frontier frequent flyer number (or for you to log in), and it's not in the Frequent Flyer portion of the website.