I am scheduled to fly Delta (on Y) from JFK - SFO on Tuesday. I have flown on this route about 8 times in the past 2 years, and have been upgraded every single time (God bless DL for that!). However, most of the services on this route appear to have an international flight number, plus, DL has configured the 757s on this route with BusinessElite instead of domestic First. Therefore DL never hands the 5 day/3 day Elite upgrades. They are always at the gate even if BusinessElite is wide open. However, one time I flew from TLV - JFK - SFO. Then, DL upgraded me to BusinessElite from JFK - SFO 5 days before.
Now... I am trying to wrap my brain around DL's elite upgrade policy on this route, and on the Business Elite configured planes:
1. No complimentary elite upgrades (understandable; they would like to sell the J seats while they can). It all happens at the gate.
2. It is also possible that their upgrade process/software excludes these flights because of the international flight num, or because of the BusinessElite configuration
3. It is *probable* that when a passenger is on an international Y itinerary, and is traveling on one of these flights, they do the 5 day/3 day upgrades, but NOT for passengers carrying domestic Y tickets.
Any more thoughts?
At this point, I am very curious to understand this.