There's no way to predict the Northern Lights. However, there are several ways to increase the odds. Here are tips and 10 places to see the northern lights from Cheapflights.
Alaska Northern Lights ~Aurora Borealis from another angle!
How to Photograph the Northern Lights. Definitely saving this one!
Another life goal : i wanna see aurora! // Alaska cruise to see Northern Lights. Good info on dates and cruise lines.
How-to Article / Northern lights photos by David Shaw