I’ve flown in and out of Flint several times to get to Battle Creek. We pick airports based on what’s cheapest each time.
Is this a nice destination for summer vacay? I've been trying to find a spot for summertime in UP/northern MI.
Traverse City area definitely.
Things to do: wineries (So. Many. Wineries and Vineyards), Sleeping Bear Dunes NL, Fishtown in Leland, Torch Lake is known for it's clarity, Bellaire is home to Shorts Brewing Co. Charlevoix and Petoskey are also great small towns, and the Tunnel of Trees near Petoskey is a destination for leaf peepers. Mackinac Island would make a great day trip from TC.
As far as the UP goes, you have to be the outdoorsy type because of its remoteness (Copper Harbor is the furthest town from an interstate in the 48), but the western half has a lot of natural beauty in the mountains. Tour boats for Pictured Rocks NL have to be booked months in advance. And the best mountain biking in the midwest can be found in the area. Marquette, Houghton, and Duluth are my 3 favorite towns in the US, but I love the outdoors.