Here’s the FXML3 data from AirportBoard, which is showing 100% progress and a status of “Estimated Arrival,” even though you’ve got a solid ETA several hours in the future, and know the aircraft is quite some distance from its destination.
{"ident":"VDA5334",
"faFlightID":"RA76511-1517079027-adhoc-0",
"airline":"VDA",
"airline_iata":"VI",
"flightnumber":"5334",
"tailnumber":"RA-76511",
"type":"Form_Airline",
"blocked":false,
"diverted":false,
"cancelled":false,
"origin":{"code":"BIKF",
"city":"Keflavik",
"alternate_ident":"KEF",
"airport_name":"Keflavik Int'l"},
"destination":{"code":"KPAE",
"city":"Everett,
WA",
"alternate_ident":"",
"airport_name":"Snohomish County"},
"route":"6700N\/05000W CANEL 6830N\/07000W 6800N\/08000W 6400N\/10000W 6000N\/11000W 5500N\/11700W BOOTH J508 SHARD V349 HUH V23 PAE",
"distance_filed":3637,
"filed_departure_time":{"epoch":1517079027,
"tz":"GMT",
"dow":"Saturday",
"time":"06:50PM",
"date":"01\/27\/2018",
"localtime":1517079027},
"estimated_departure_time":{"epoch":1517079027,
"tz":"GMT",
"dow":"Saturday",
"time":"06:50PM",
"date":"01\/27\/2018",
"localtime":1517079027},
"actual_departure_time":{"epoch":1517079027,
"tz":"GMT",
"dow":"Saturday",
"time":"06:50PM",
"date":"01\/27\/2018",
"localtime":1517079027},
"departure_delay":0,
"filed_arrival_time":{"epoch":0},
"estimated_arrival_time":{"epoch":1517107319,
"tz":"PST",
"dow":"Saturday",
"time":"06:41PM",
"date":"01\/27\/2018",
"localtime":1517078519},
"actual_arrival_time":{"epoch":1517079027,
"tz":"PST",
"dow":"Saturday",
"time":"10:50AM",
"date":"01\/27\/2018",
"localtime":1517050227},
"status":"Estimated arrival",
"progress_percent":100,
"aircrafttype":"IL76",
"full_aircrafttype":"IL76",
"adhoc":false}