We flew from Columbus, OH, (3 hours) to Houston, Tx, then stright through to Honolulu, (8 1/2 to 9 hours). It was a very long flight, but I was able to read, watch a movie, and nap. It is very tiring, no matter where you sit. All I can say is that after getting up a 4:00 a.m., EST, and arriving in Honolulu 12:30 their time, the excitment once you are there is an adreniline rush, your not as tired as you think you will be. We walked all over town, ate dinner, and were still able to walk along Waikiki Beach after sunset. Hawaii takes away all the discomfort you felt on the flight over.