Originally Posted by davevi
I've booked a refundable and upgraded WBC fare from TPA to NRT via MSP and DTW. The ticket came up at $3770 plus 15k miles. Okay, fine.... When I run the same dates to BKK I'm getting fares in the $2000 range (plus 60K miles) with WBC to NRT and economy to/from BKK. This is interesting to me because I could still do WBC to NRT and just not use the BKK economy leg.
If the UG is only 15K miles, it was a Y fare, which is often as much as twice the next fare level, B. B fares require 30K miles each way for an upgrade so it struck me that that's the situation you're in. Run the itins again and see what the fare classes are.