SAN FRANCISCO (KRON) – Tuesday marks the fourth day of a three-week construction project on a runway at SFO, and there have already been hundreds of flight delays and cancellations.

A new base will be built along the 1,900-foot stretch to where 2-8 left runway meets the intersection of another runway, affecting both departures and arrivals.

The project is expected to be completed by Friday, Sept. 27.

Latest News Headlines: