Is a 1½ hr layover in San Francisco long enough?
SFO · San Francisco International · San Francisco, United States
Probably Enough
Solid buffer for most terminal changes and standard security wait times.
Quick Stats
4
30m
20m
United Airlines
Minimum Connection Times
60min
✓75min
✓60min
✓90min
tightAD PLACEMENT — CONTEXTUAL
Tips for 1½ hr Connections
If arriving internationally on United and connecting domestically, look for the sterile connection corridor from the International Terminal to avoid re-clearing security.
Domestic-to-domestic connections in different terminals almost always require exiting security, so budget extra AirTrain and re-screening time.
United's hub operations are concentrated in Terminal 3 and the International Terminal, so many connections stay within a short walk.
Use the AirTrain rather than walking outdoors between terminals, especially during Bay Area fog or rain delays.
Check your gate as soon as you land since SFO frequently reassigns gates due to space constraints, especially at the International Terminal.
Busyness — Connection Risk
12a6a12p6p12a
Low risk
Moderate
High risk
Tight connections are safer outside peak hours. Morning rush (6–9a), midday (11a–2p), and evening (4–8p) are highest risk.
Getting Between Concourses
The AirTrain Red and Blue lines circle the terminal complex on an elevated guideway, with each hop taking about 5-8 minutes plus waiting time. Most domestic-to-domestic connections require leaving the secure area, riding the AirTrain, and clearing TSA security again in the new terminal, while many international arrivals can connect to United domestic flights via a sterile corridor without re-clearing security.
Is 1½ hours enough for a layover at SFO?
Solid buffer for most terminal changes and standard security wait times.
Other Layover Durations at SFO
AD PLACEMENT — BEFORE FOOTER