Kauai Fun Vacations

What is the distance in miles from Algona, Iowa to Lihue, Kauai, Hawaii? I am going to Hawaii and my 16 month old son is going to Iowa with my mom. I've never been apart from him from so long and I'm kind of nervous. I was wondering just how far away we are really going to be. It looks like a million and two miles on the map. Algona Iowa is zip code 50511, and Lihue is 96766 if that helps.