One of my trips this week is UA633, DEN-LAX with what looks like a 767. The UA seatmapper initially showed the domestic 767 config. SeatCounter shows the domestic 767-300 (F9,Y9). When I go through "My Itineraries" to choose my seat, I get this msg in red:
Seat maps are unavailable for this flight. If this is a codeshare flight or a flight operated by a partner airline, please contact the operating carrier for seat map review and seat assignments.
I've never encountered this msg before on a UA metal flight. Any idea why this is coming up? Possible plane change?