nostr:npub1zckfegwx0gnt6ka5j3pdwcekz7qhngywl6h2w4h5q8qeyuzwmhnquggryd
True, and there is some cost involved in carrying excess fuel, but the time of 140 passengers also has some value.
We actually paid for a service.
But I can see that with a range of 3400 nm, totally full tanks for a 850 nautical mile trip is excessive.
https://planenerd.com/range-of-boeing-737/#737-next-generation-range