Originally Posted by
MSPeconomist
Recently I was able to find the actual miles by clicking on something in the PNR that was nonintuitive--perhaps aircraft details, where aircraft specs like range, dimensions, and number of seats appear. I was amazed that the return flight (which used the same aircraft and same flight number) was supposed to be three miles shorter than the outbound, of course between the same airports and terminals.
Miles Flown is showing in App for itins when you select aircraft details, but not on website. I don't think these are accurate as they can show different values based on direction as noted. The Miles Flown shown when selecting flight number while booking new flights I believe has accurate numbers.
MSP-GRR currently shows as 407 or 408 depending on direction for an existing itin in the App. But a new booking shows 407 both ways.
I don't believe they've ever had a tracker for total pure "Miles Flown" in a year. Just MQMs which included CC based MQMs as well as flown MQMs (which could also include class of service and promo bonus MQMs). Since MM miles where based on MQMs, rathan than Miles Flown previously, a Miles Flown tracker wouldn't have even been particularly useful anyway. To get MQMs earned for year from image below, you'd need to subtract out the Rollover MQMs.