Is a 90-Minute Layover Enough at SFO?
San Francisco International — San Francisco
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Risky — 18% miss rate
It's risky — a 90 minutes layover at SFO gives you about a 18% chance of missing your connection.
18%
Miss Rate
76%
On-Time Rate
69m
Avg Delay
Why 90 Minutes Is Risky at SFO
A 90-minute connection at SFO is risky. Based on delay patterns, roughly 18% of travelers on connections like this would miss their flight. We recommend at least 133 minutes.
·Airport reliability: SFO has a 76% on-time rate
+Comfortable buffer: Your 90-minute layover is well above the 60-minute minimum
−High average delay: When flights are late at SFO, the average delay is 69 minutes
−Long taxi times: Planes at SFO typically sit on the runway for 21 minutes before takeoff
Minimum Connection Time at SFO
60m
Domestic
120m
International
Your 90-minute layover gives you 30 minutes of buffer above the 60-minute domestic minimum. That's a comfortable buffer for most situations.
Terminal Transfers at SFO
How to transfer: AirTrain connects all terminals; Terminals 1-3 have airside connectors
Transfer time: 5-15 minutes between terminals depending on route
!TSA re-screening: Required for some terminal changes — Connections between the International Terminal and domestic terminals may require re-screening. Terminals 1, 2, and 3 are connected airside via walkways.
Compare Other Layover Times at SFO
Click any row to see the full analysis for that layover time.
What to Do Instead
- →Look for itineraries with 133+ minute layovers at SFO
- →Consider a direct flight if available
- →Book both legs on the same ticket (airline must rebook you if you miss the connection)
- →Choose an early morning first leg — morning flights are delayed less often
Check a Different Layover Time
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