Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missoula to Marquette as you normally would.
Looking at all options, your cheapest flight can be booked for $1,008. While the most popular route (Missoula Johnson-Bell Field - Marquette Sawyer Intl) can be booked for $882 on average our data indicates $1,053 when flying from Missoula to Marquette.