Although the plane was not full & it was nice to have an extra empty seat in our row, the flight was delayed 1 1/2 hours because of "crew rest." We had a 6 hour flight that didn't arrive in San Francisco until 10:30 p.m. which was 1:30 a.m. for us flying from the east coast. Our flight returning home was also delayed almost 2 hours because of a mechanical problem. The plane's internet also did not work which made for quite a boring flight, no movies to watch. I will say the flight attendants were very nice & actually gave us a free drink for our inconvenience.