All the airports that flights arriving at Gate F20 ( between 2020-~05 and 2021-05-25 ) have come from See the airports that flights leaving from Gate F20 are going to / or see all the flights in and out of this gate

Salt Lake City International Airport. This airport in the United States is also referred to as SLC or sometimes KSLC
Dallas-Fort Worth International Airport. This airport in the United States is also referred to as DFW or sometimes KDFW
Jackson Hole Airport. This airport in the United States is also referred to as JAC or sometimes KJAC