To save up to 30% on this flight, we recommend booking at least 61 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 British Columbia from $266 1-2 weeks out and tickets from $306 for flights departing within the next 72 hours.
Flights from Helena to British Columbia lean towards being more expensive in December. Prices are generally better when you fly from Helena to British Columbia in March, with the cheapest ticket starting at $118.