Originally Posted by
ucdtim17
Alaska regularly reroutes traffic to OAK or SJC on 3+ hour delay days at SFO. I'm not aware of any other carriers that do that though; Southwest certainly might, given the large operations at both airports.
Comparing to UA's rigid flight scheduling and poor ability to manage IRROPS, it was amazing how flexible and creative Southwest can be. I once had a LAS-SFO flight cancelled due to weather-caused congestion at SFO, and Southwest used the same aircraft parked at the LAS gate, created a new flight LAS-OAK with a WN99xx flight number, called for passengers to rebook at the podium, and got the flight out at the originally scheduled LAS-SFO departure time.