Just noticed this. According to
flightradar24, about 50 minutes into the flight, while cruising ~50 miles south of Missoula MT, DL2639 makes a U-turn and diverts to GEG (Spokane). Any ideas why? Medical emergency maybe? The plane was only on the ground at GEG for about an hour before continuing to Orlando, so mechanical seems unlikely. Also, why not divert to Missoula, which would have been a lot closer?