Any tips on flying with a 3 year old and 14 month from Auckland-Bangkok?

U CAN BRING THAT ABORD AND THE AIRLINE LADIES WILL HELP U ....TAKE BOOKS TOYS AND IF U CAN A PORTABLE DVD WITH FAVORITE MOVIE BUT DO NOT GIVE IT ALL TO KID AT ONCE SPACE IT OUT AND HAVE COOKIES OR OTHER SNACKS AVAILABLE .... OR GIVE THE KID BENEDRYL IT WILL KNOCK HIM DOWN FOR HOURS