Originally Posted by
spongenotbob
In my experience the best time is 3-6pm ET on Saturdays. Immediately after you see the orange standby bubble show up on the app.
A few hours later the system automatically accepts the changes and settles the new itinerary. Sometimes, this means fewer options going forward.
the interesting thing is my sister, who was on the desired flight (10 min change, same flight just the next day) to begin with is still showing +0s across the board until now