They landed at Logan International Airport, but no one’s come to claim them.

Now Massport will auction 95 cars next week that have been abandoned at the Boston airport’s parking garages and lots, many of them for years.

Cars on the preliminary list of those about to hit the block range from a 1991 Isuzu Trooper to a 2009 BMW. There’s a Mini Cooper, a 2005 Jeep, and a few Mercedes and Ford Explorers.

All will be offered in as-is condition, including no keys. And some have been sitting at Logan since 2009, the last time Massport held such an auction.

Between 10 and 20 cars per year are left unclaimed at Logan, and Massport has no inkling of the stories behind them — whether they belong to people who left from Logan never to return, or they’re hidden out of sight there as part of insurance scams, for example.

“If we did (know), we’d have a crystal ball,” aviation business general manager Sal Amico said.

Massport patrols its garages and lots, and flags cars left sitting for three months. “We work with the state police to determine whether or not the vehicles are stolen,” Amico said. “If they’re not, they’re left in the facility for another period of time when we’ll attempt to reach the owners.”

All vehicles up for auction on Oct. 17 have been at Logan for more than a year. “In that timeframe, we would have attempted to contact the owner or lien-holders at least multiple times,” Amico said. By statute, Massport has the right to get rid of the cars after six months, but it waits a year in case owners went elsewhere for an extended period and plan to return.

The cars eventually are transported to Massport’s “green” bus depot garage, where they sit until the next auction.

“We usually try to get enough vehicles to make it worthwhile to hold the auction,” Amico said. “We don’t do anything to the vehicles. At a minimum, they need to be washed.”

The Oct. 17 auction starts at 10 a.m. (Oct. 24 rain date). Potential buyers can only view the cars two hours before the auction starts. Sales are cash only, and cars must be removed from the depot by 4 p.m. the next Monday.

“We give them a bill of sale and the customer is able to register a vehicle,” said Mike DeAngelis, Massport’s transportation business manager.

Massport retains proceeds from the auctions, usually attended by wholesalers, junk dealers and individuals hoping to score a new ride. “For us, it’s really about clearing space within our facilities and disposing of these vehicles properly,” Amico said.