People flying for work, who are spending someone else's money.
90%, maybe even 95% of business class seats the world over are sold this way. Its not just Delta.
On a related note, I've found google flights to be less than worthless, most travel agencies as well.
Two days ago, I was looking at Denver to Reno Flights on United and Southwest for the end of June, for a 3 to 4 day trip, they were ranging from $770 to almost $900, for economy seats, for a 2 hour flight. I would argue that's just as crazy as $20k to fly half way around the world.
I looked again today, and if I fly one carrier each way, its down to about $600 total. Google flights/AI whatever Bull#!t the tech companies are currently pushing isn't going to find that type of thing for you. A travel agent could, if you give them very specific instructions and very flexible terms, but you're going to pay for it. Often more than you would save.
If it makes you feel better, I just booked DEN-MIA for 7 days at the end of September for $283, apparently United thinks the war will be over by then and fuel prices will be back to normal. I'll add premium economy seats at some point so that will bump the price up closer to $400, but that's about what I paid last May for the same trip.
If you're serious about saving some money, you should be checking prices, yourself, at least once a day. The airlines are constantly adjusting prices, often several times a day, if oil prices are down that day/hour flight prices will be too.
