Why are Delta miles so high?

Why are Delta miles so high?

Finally, with no fixed prices, last-minute SkyMiles award tickets function like revenue tickets: They tend to be significantly more expensive. Delta doesn’t charge a close-in ticketing fee like other carriers, but a higher amount of miles required within 21 days of departure is a de facto close-in fee. Jan 9, 2022

See also  Does Amex do travel insurance?