It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Due to multiple factors, expect to potentially pay more when booking in September. For low rates, August can be a great choice for travel to Grand Junction. Flights to Grand Junction from Milwaukee in August are about $146 on average during August, but can be found for as low as $44.
Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from Milwaukee to Grand Junction by exploring options for tickets in the afternoon.