I had booked flights for November 9 YYZ - JFK - LAX - PSP, including Delta One from JFK - LAX. Today, I was notified that my flights were changed due to a schedule change. I am now scheduled for YYZ - ATL - LAX - PSP but only in domestic first. The original flights are all available and all for sale, but when I search on delta.com for that routing it doesn't show as available, only domestic F is available for that routing.

Thoughts on what's going on and whether I can get the original flights reinstated? I have been waiting for 4.5 hours for the call back...

Update: finally got through to an agent who took 20 minutes to rebook on another JFK-LAX flight. She said the original flight DL1353 is no longer scheduled. The weird thing is that it's still bookable...

It's possible there were some time changes or flight number changes that caused DL to change routing. It would be helpful to know your original flight itin as booked. Also, the "Fare Details:" line in your email receipt will have the fare component details with fare basis codes. ExpertFlyer does not show any D1 fare filings for YYZ-PSP which is why there are no D1 options shown when you do a flight search for YYZ-PSP. I did a back-dated search on ExpertFlyer and it's not showing any historical D1 fare filings either. Did you originally book some other routing and they switched you to JFK-LAX routing?

So, the original itin was YYZ-SLC-PSP but we changed to the JFK - LAX routing for the D1. They apparently did cancel the flight we were on but delta.com was still selling it. Once I got an agent, she was able to restore the D1 routing, but it took a long time on the phone...

I posted because it looked like they offloaded us to ATL-LAX and were still selling DL1353 but I see now it is gone.

Thanks for your reply!

It might help to check your fare rules, especially for the original ticket. I suspect that DL agents have given you special favors in rebooking you from domestic FC to D1. When I look for domestic FC flights, often the fare rules specify that certain flights/routes/aircraft cannot be used and the prohibitions seem designed to apply to D1 flights. Alternatively, I see fares that include D1 segments priced significantly higher for the same city pairs.

ADDED: Do any of your ticket receipts indicate a broken fare? Also, what are the current legal routings for YYZ to PSP as your rebooked tickets seem to be taking the long away around to PSP from Canada.

I'm betting that YYZ-JFK-LAX-PSP was at one time an allowed routing during COVID era. If going to a lot of "smaller" West coast destinations you need to go through LAX. Thus going YYZ-JFK-LAX -??? isnt unreasonable. Now if the destination is served via a number of other hubs, then going via JFK isn't normally an option for routing. (YYZ-SLC even pre CV19 was once daily and there never was YYZ-LAX/SEA)

Regardless, OP had a schedule change. Just like in IRROPS theres no need to follow fare routing rules. It's more or less agent discretion for domestic CONTUS/CANADA routing.

Just for fun, when I check schedules for MSP-PSP for tomorrow (not the OP's city pair, but I'm curious) I see three flights (spaced throughout the day, some of which give a choice of flights departing MSP) from SLC to PSP and one connection through SEA. Overall, there are six itineraries with one stop and eight with two stops (all through SLC). No LAX-PSP segment appears in any of the choices.

LAX-PSP on DL starts back up on October 1.

Obviously it could very well change...

Yes, FC fare rules have long had a list of prohibited aircraft on D1 routes (below are just the ones for JFK-LAX/SFO flights), while D1 fare rules provide for flying these specific routes/equipment. Backdated searches on EF do not show any instances of DL relaxing these FC fare rules, so they did OP a favor. While DL has D1 fare filings on YYZ-LAX, there are no D1 fares filed for YYZ-PSP (only FC) and even if there were, OPs original routing would have been an FC fare routing.

THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON AIRBUS INDUSTRIE A330-200
ON NONSTOP FLIGHTS.
AND
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON AIRBUS INDUSTRIE 330-300
ON NONSTOP FLIGHTS.
AND
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON AIRBUS A359
ON NONSTOP FLIGHTS.
AND
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON BOEING 757 200 WINGLETS
ON NONSTOP FLIGHTS.
AND
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON BOEING 767-400
ON NONSTOP FLIGHTS.
AND
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON BOEING 767-300
ON NONSTOP FLIGHTS.
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON BOEING 777
ON NONSTOP FLIGHTS.
AND
THE FARE COMPONENT MUST NOT INCLUDE TRAVEL BETWEEN JFK
AIRPORT AND LAX/SFO
ON BOEING 777-200LR
ON NONSTOP FLIGHTS.

Which as OP was rebooking due to schedule change doesn't matter. Outright buying it with this routing isnt possible it appears, but that doesn't mean agent cant change to it. Especially if it appears as an option for coach they'll likely feel it's fine to book in premium. Just because you cant book in the D1 cabin on this route doesn't mean you can't book in Y on it. I used to do this all the time on West Palm Beach/MCO/JAX/MIA/FLL. Book via JFK in Y (can't book in D1 on this routing). I then would upgrade to D1 via Medallion upgrade .

This happened to me today - or I noticed it today - didn't get an email.
Flying SFO-LAX-RDU on 7/11 - LAX-RDU is a redeye and I specifically selected it because I want to get in to RDU at 6 am.
Today I discover that DL has rebooked me SFO-ATL-RDU arriving at 9 am. I had used an RUC and this change put me on a 763 SFO-ATL instead of the 738 LAX-RDU, but I need to be at RDU very early.
I looked and the original itin was available.
I called, took about 10 minutes to get the call back and got put back on my original flights. The agent did take some extra time to be sure that the LAX-RDU flight wasn't being cancelled. But the call took 31 minutes because it had to go to the reissue desk.
I'll keep watching because something makes me think this will happen again before I fly

Not sure if this happened, but if you had been booked on flight DL3700 for SFO-LAX, it switched from a 7:29PM departure to 8:25PM in the July schedule which no longer meets MCT to catch DL1162.

No, I was on 3643 that leaves SFO at 517 pm. Same time now.

It got adjusted a bit to 5:21PM departure in July schedule. LAX-RDU red-eye flight also had a slight departure time change for July. Wouldn't think a minor time change would get you moved, but who knows.