The Dayton International Airport is actually in Vandalia, Ohio. There is a group of hotels and restaurants a few miles south of the airport (I-75 and Wyse Road).
There are 5 or 6 hotels and many chain type restaurants in this cluster. There is an aviation-themed bar (Wings) within a mile of this cluster of Hotels/Restaurants.
Restaurants:
Max and Erma's, Outback, Don Pablo, Chipotle, Nothing but Noodles, Cracker Barrel, Hooters, Panera Bread, Skyline Chili, Sake Japanese, Joe's Crab Shack
There are more but I cant remember all the names.
Hotels:
Courtyard Dayton North
Fairfield Inn
Motel 6
Comfort Inn
Red Roof
Extended Stay
Drury Inn
All of these Hotels are on Miller Lane in Vandalia Ohio.
This is the most convenient block of Hotels and Restaurants to the Airport.
There are others of course.
Downtown Dayton is pretty interesting.
Here are my recommendations downtown.
Dublin Pub is a good Irish bar. Excellent Guinness pours and good beef stew. Fifth and Wayne in the Oregon District. Live Music but the best guy plays on Wednesday. Sometimes they have Irish music on the weekends.
Jays Seafood on Sixth also in the Oregon district. Kindy pricey.
Wings Bar and Grill on Wyse and North Dixie in Vandalia is an aviation themed bar that we spent an evening at. Older crowd (for some of the youth in this game anyway)