Flights from Lansing to Duluth lean towards being more expensive in July. Prices are generally better when you fly from Lansing to Duluth in April, with the cheapest ticket starting at $176.
One of the essential ways to save on airfare from Lansing to Duluth is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 26% on airfare.