It’s typically best to fly out from St. Louis to Helena in the morning. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.
Users have found that flying from St. Louis to Helena on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.
Flights from St. Louis to Helena lean towards being more expensive in October. Prices are generally better when you fly from St. Louis to Helena in August, with the cheapest ticket starting at $159.