Flight delays into and out of San Francisco are averaging 2.5 hours following Saturday's fatal plane crash. 

One of the primary runways at SFO remains closed as NTSB and FAA investigations at the crash site continue. 

Officials say there is no estimated time to reopen Runway 28-L, one of four runways at the airport. 

The wreckage of Asiana Flight 214 has not yet been moved. The San Mateo County coroner is conducting autopsies on the two crash victims to determine a cause of death.