Before you jump straight
into searching for an award flight, I recommend playing around a bit with Airline Route Mapper (tutorial) or Airportzz to see which airlines can take you to your destination.
Not exact matches
You must have and log
into your British Airways Avios Executive Club account to
search for and book
award flights on the British Airways website.
To
search for award space with Hawaiian, log
into your account, click «book» at the top of the screen, click the
flights tab, and select the «miles» circle at the bottom.
I don't know if makes a difference or not, but I've logged
into my family members Aadvantage account and
searched for award flights.