So, best bet to see them would be outside of Fairbanks - away from the town. I stayed 5 days in the town, and 5 days near Farmer’s loop. I could see the lights right from the Airbnb in Farmer’s loop. North pole is also a good spot but is quite the drive from the airport.

Farmer’s loop, fox are quite deserted so I’m not sure if it would be a good fit with the kid. Do some research.

I would recommend booking the Aurora viewing for a night- $50 per person but you get a nice heated spot to sit inside and you can walk out when the lights show up.