Alerts & Advisories

Allow Extra Time to Navigate To and From the Terminals

N. McDonnell Road Partially Closed from September 4, 2018 through July 2019.

Beginning September 4, 2018, a partial closure of N. McDonnell Road will commence, resulting in one operable lane in each direction.  The closure is expected to last through July 2019.  Rental Car customers should plan accordingly and expect delays when travelling on N. McDonnell Road over the next year.


US-101 Southbound

The ramp to the Airport will be closed on Wednesday, September 19 – Thursday, September 20, between 11 p.m. and 5 a.m. 

US-101 Northbound

The ramp to the Airport will be closed on Thursday, September 20 – Friday, September 21, between 11 p.m. and 5 a.m. 

Detours will be in place to direct traffic to the Millbrae Avenue exit to circle back to US 101 Northbound during the southbound ramp closure and to the San Bruno Ave. exit to circle back to US 101 Southbound during the northbound ramp closure.


San Bruno Canal Bridge at South Airport Boulevard 

is currently closed.  The new bridge is expected to open by the end of 2018.


Expect delays on the AirTrain.

Monday, September 17th - Friday, September 21st from 10:00 p.m. to 5:00 a.m. all trains closed. 

Tuesday, September 18th and Wednesday, September 19th, we will suspend Blue Line service beginning at 6:00 p.m. and ending at 10:00 p.m.

Busses will operate in lieu of trains.

Please refer to the overhead signs located at each station and listen carefully to the audio announcements for more specific information during these periods. Please note that in some cases, it may be quicker to walk to your destination. This scheduled closure is due to system upgrades and the construction of the new on-Airport hotel station.

SFO is extending the Blue Line AirTrain from the Rental Car Center to the Lot DD Long-Term Parking Structure.  This project includes two new AirTrain stations (one at Lot DD and one at the new on-Airport hotel) and system upgrades.  As a result, periodic shutdowns of some roads around the Airport, as well as periodic nighttime shutdowns of the AirTrain, will be necessary through 2020 when the project is complete.  View AirTrain extension and improvements for more information.

Thank you for your patience and understanding as we continue to build for the future.