Flights from Spokane to Duluth lean towards being more expensive in February. Prices are generally better when you fly from Spokane to Duluth in August, with the cheapest ticket starting at $233.
Departing on a Monday is a good option for securing a great price. You can expect to save up to 55% when planning your travel around this day of the week.
Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from Spokane to Duluth by exploring options for tickets at noon.