Long back story, however, I need to be able to track back and uncover the fare that was booked on a number of Delta tickets. I have confirmation #s , ticket #s and fare details. I'm thinking Fare Details are the only piece of data needed to specify the actual fare class that was purchased (?).
For example: the below is a $671 one-way flight to DTW from LAG June 2019. What from this string can I interpret what class was purchased?
Fare Details: NYC DL X/DTT DL SAN602.79KA0VA0FJ USD602.79END ZP LGADTW XF LGA4.5DTW4.5

Here is another example: this is a nearly $1400 RT SAN/ATL July 2019
Fare Details: SAN DL ATL458.61UAUQA0FB DL SAN798.14BA0PA0FL USD1256.75END ZP SANATL XF SAN4.5ATL4.5

Is there anything else on a trip confirmation email from Delta that I could look at in order to confirm this? Of course I don't believe the seat numbers that are showing as these could be easily adjusted. I realize things were different a year ago but these prices for economy class seem outrageous. I have plenty more examples if they would help!

Thanks in advance!