To save up to 54% on this flight, we recommend booking at least 31 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Helena to Bellingham from $158 1-2 weeks out and tickets from $203 for flights departing within the next 72 hours.
Flights from Helena to Bellingham lean towards being more expensive in August. Prices are generally better when you fly from Helena to Bellingham in February, with the cheapest ticket starting at $92.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Helena to Bellingham as you normally would.