Some time ago there was a thread about getting a noise reduction Headphone. I did some research and ended up with Plane Quiet NC7. It does take the roar of the jet motor down to a not so loud sound. It worked well as a light headphone, but does not measure up to the Bose noise reduction variety headphones. The cost is main reason for the NC7, but if you really want to be serious, I suggest you spring for the extra pennies and get the Bose. You will arrive in Bangkok in better shape. The downside of the Bose, they are not small and do take up space on your carry-on. Happy travel to all.