Jim Simons's Gulfstream lands in Montana just before airport's July runway closure

Jim Simons's Gulfstream G800, tail N773MJ, was tracked flying from Boston Logan International Airport to Glacier Park International Airport on June 29, arriving after a four-hour-and-28-minute flight. The aircraft, owned by the Renaissance Technologies founder's estate, touched down at KGPI at 7:25 p.m. local time.

If Jim Simons was aboard, the arrival comes the same week Glacier Park International begins a critical runway rehabilitation project that will close the main runway on weekdays from July 6 through the end of the month, per a Flathead Beacon report [flatheadbeacon.com]. The airport will operate at only 60% capacity during the closures, with flights consolidated to weekends — making a pre-construction visit a pragmatic move for anyone wanting to avoid the disruption.

The flight follows a pattern of recent movements: the aircraft had been in Italy on June 25, then flew to New York and Boston before heading west to Montana. Should Jim Simons have been on board, the trip may represent a return to a second-home region or a strategic visit timed to beat the construction chaos — or simply a summer getaway to the Flathead Valley before the July travel squeeze.