Finland is a wonderful spot to see them and probably not much longer a flight than to Fairbanks. We had peak lights last winter and are starting a waning cycle but there will still be plenty of aurorae, not to worry.
There are heaps of aurora forecast sites out there, my advice is to pick a place where you'll have a car as cloud cover can ruin everything (which is why Iceland can be so hit and miss for the lights).
October-March are peak time for the lights. You can see them outside of those windows, it's just not as dark near the horizon so it's a bit tougher.
Can vouch it's worth the effort though!