I don't know if anyone else has been frustrated by alaska's search engine for booking international awards flights with their partners Delta and American but I discovered a trick I thought I would share. You can look up the awards availability on the partner airline's website and then when you find a date on the partner airline's website you can plug that into the alaska search engine. For example. If you go to American Airline's website they have a calendar you can browse for available awards flights. When you find a date that is open on the calendar you can plug that date into alaska's search engine and you can book that american flight with your alaska miles.