Travelers have found that booking a Tuesday departure is the best way to save up to 105% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, April can be a great choice for travel to Duluth. Flights to Duluth from Grand Rapids in April are about $337 on average during April, but can be found for as low as $176.
One of the essential ways to save on airfare from Grand Rapids 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 35% on airfare.