To save up to 49% on this flight, we recommend booking at least 33 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Williston to Spokane from $167 1-2 weeks out and tickets from $228 for flights departing within the next 72 hours.
Flights from Williston to Spokane lean towards being more expensive in March. Prices are generally better when you fly from Williston to Spokane in September, with the cheapest ticket starting at $72.