In my experience, fixing ground ops would be the biggest boon to efficiency and customer satisfaction. My experience these days from doing a lot of domestic fly

In my experience, fixing ground ops would be the biggest boon to efficiency and customer satisfaction. My experience these days from doing a lot of domestic flying in the U.S. is that lack of ground coordination (takeoff queues, gate availability, randomly sitting on the tarmac for an hour) cost a lot of money and time. If the state of planes in the sky can actively be used to optimize ground ops at airports, I think that'd help consumers and reduce some costs. Other than that, I think consumers could forgive the padding in flight times. If I take off 20 minutes late and still arrive 10 minutes early, I'm happy, so the psychology continues to work.