counter-intuitively, bullet trains offer a great alternative that airlines cannot: travelling from SF to NY in about 10-12 hours. 8 hours to sleep on a flat bed, and an hour or two for dinner and breakfast on either end.
This would be far superior to the 5-hour red eye flights.
fair point - not sure why you are being downvoted.
Lets say SF to Chicago, then? Its about 2000 miles.
I was trying to illustrate a more general point that speed isn't necessarily the best or most optimal criteria even for long distances. My choice of example could have been better.
This would be far superior to the 5-hour red eye flights.