Originally Posted by
Dave Noble
Assuming this is a one way ticket or is the outbound of a round trip ticket, then the fare difference is looking at how much the ticket costs to buy a ticket now for that journey minus the amount already paid
No this is the inbound of a roundtrip/multi-city (I already flew SFO-DFW-PVG).
(Looking at ita, PEK-DFW-SFO on M on 10/10 costs $900+ right now. My original ticket was ~$1,400)