A bunch of transcontinental Virgin America (VRD) flights seem to be being split in the flight tracker in odd ways. For example:
flightaware.com/live/flight/VRD4 … /KIAD/KSFO
shows the first half of the track for the flight, but then it gets marked as “arrived” halfway through. A second entry then shows up in the list of flights with the correct arrival time, but no track.
This seems to be happening for most VRD flights between SFO and IAD, and I saw it for one between LAX and IAD as well.