Sorry if this is redundant, but can't find info after a fruitless search. I found some info about award tix, but this is not the case:
We have *paid* 1st class tix on Delta in fare classes A (outbound legs) & P (return legs) that we may have to cancel. Are these refundable fares?

Many of the A fares are discount restricted F or coach fares that allow seating in F cabin. You would need the whole fare basis for both ways as the most restrictive rules apply. For anyone else to look them up would also need city pairs and dates as not all fares are the same.

It's not that simple as looking at fare class, though in general if you have any discounted ticket (even discounted first class), it's likely non-refundable. I'm not even sure all Y and F fare class tickets are refundable (I think they are, but I wouldn't be surprised if someone tells me there are exceptions). You can find S class fares that are non-refundable while some T class fares are refundable, it just varies by the specific rules of the fare booked.

Correct, fare class can't really tell you much. I encountered a non-refundable F fare the other day.

The only thing you can generalize is that the lower the fare is in the hierarchy, the less likely it is to be refundable, but this is not a hard and fast rule.

It's likely that the A is nonrefundable and has a $200 change fee if it's a domestic route. The P might or not be nonrefundable/nonchangeable, largely dependent on how expensive it was. Many (most?) markets have restricted and nonrestricted P fares.

BTW, are you really concerned about refundability, meaning that you get a refund to the original (credit card) means of payment possibly after paying a fee, or do you mean changeable, meaning that you get a DL credit toward another ticket, again possibly after paying a fee. These are technically different concepts.

Well, for openers, we're both UA 1K, but in this instance, because of a more favorable schedule to the particular destination, opted to use Delta for this trip. So, in order of preference *if* we have to cancel, would like full refund, otherwise would accept a credit for a future trip (dunno when, but better than nothing). That said, I find Delta's receipt opaque about the fare basis. For example, in another thread there was a reference to an 8-character fare basis code where the 7th character indicates refundability, but how/where can you find that code? The maddening thing is the phrase "This ticket is nonrefundable unless issued at a fully refundable fare" Huh ... what does that mean, a generalization or a specific to this ticket?? Anyhow, the trip is SEA-SLC-STL & return ... does this help (A) outbound, (P) return.

You might be able to call DL and ask, but I'm pretty sure that the A fare would be nonrefundable but changeable with a $200 change fee. Assuming it's a RT ticket and not two one way separate tickets, you'll each get a nontransferrable (and noncombineable) credit for the fare minus $200.

I believe the electronic credits expire one year from the date of issue

One year from original ticketing date.@:-)

Thanks: these are RT tix, so I think the $200 change fee is the best outcome to hope for since we have no status w/ Delta (UA has been good in the past w/ full refunds if the reason was medical-related). After reading thru the thread I dug deeper into the Delta website & finally came up with a fare class chart (where was it hiding?) which confirms the caveats re A & P fares.

To really be sure, you need to know the exact fare code and then look at the full rules for your fare.

Ahh, but that's the question. How/where do you find the fare code ... doesn't seem to be on the receipt (at least the one for our itinerary). The only things I can see are the "A" & "P", but no x-character string that supposedly has a buried code for refundability. Anyhow, looks like we'll need to cnxl so I'll call & see what the agent says.