Certainly, the modus operandi was to send two attacks at NYC (each plane hit one WTC tower) and two attacks at Washington (one plane hit the Pentagon and the other apparently the White House or Capitol Building).
If the story here is correct, there should have been another report of another plane from DFW with similar circumstances. AA is the big carrier out of DFW.
I just ran the AA flight schedule from DFW for Sept 12 2002. The arrival time of the first flight from DFW gets to SFO at around 9:30 AM.
Let me do a thought experiment with you. Take at face value the story reported here by another Freeper (regarding seeing 4 suspicious ME men agitated on a morning flight from DFW to SFO while it was delayed).
If the modus operandi is to pick two flights leaving at similar times from the same airport, I would say check the AA flights leaving for LA at the same time.
It turns out the AA schedule says that the first DFW flight to LA leaves at 7 AM CST and arrives at 8 AM PST in LA. If you know anything about LA, there aren't many people in their offices in LA at 8 AM. It's the middle of rush hour and people are still driving. If their goal was to inflict maximum casualties, then the logical flight to pick was the next one. That flight appears to leave just after 8 AM CST (almost simultaneous to the DFW-SFO flight)! It would have arrived in LA at around 9:30 AM PST, coinciding with the timing of the attack in NYC's WTC.
If they were plotting to attack a West Coast target, they may have been identified by the passengers on the SFO flight. I sure hope the FBI has already thought of this and has already run the passenger lists for the morning of 9-11-01 at DFW!