Originally Posted by
born sleepy
I was advised in another thread to only apply a SWU to the longest flight in a multi, if doing it online (I am not experienced with AA SWUs). So which is it?
Normally, you waitlist the long segment. e.g LAX-HND. If that clears, call and upgrade the SFO-LAX segment. This way, if your long segment doesn't clear, you don't waste a SWU on a SFO-LAX.
In the case of expiring SWUs, you clear the SFO-LAX segment as it's easier to clear. If the waitlist on the LAX-HND opens up
after the SWU was slated to expire, you can use the
already cleared SWU on another segment. At worst, you've burned an SWU on a SFO-LAX type flight that was going to expire unused.