Is a 3-Hour Layover Enough at STL?
St. Louis Lambert International — St. Louis
✅
Safe — 4% miss rate
Yes — a 3 hours layover at STL is enough.
4%
Miss Rate
80%
On-Time Rate
64m
Avg Delay
Why 180 Minutes Is Safe at STL
Your 180-minute connection at STL looks solid. You have plenty of buffer even if your first flight is moderately late.
·Airport reliability: STL has a 80% on-time rate
+Comfortable buffer: Your 180-minute layover is well above the 40-minute minimum
−High average delay: When flights are late at STL, the average delay is 64 minutes
Minimum Connection Time at STL
40m
Domestic
90m
International
Your 180-minute layover gives you 140 minutes of buffer above the 40-minute domestic minimum. That's a comfortable buffer for most situations.
Terminal Transfers at STL
How to transfer: Walking within Terminal 1; MetroLink train between Terminal 1 and Terminal 2
Transfer time: 5-8 minutes within Terminal 1; 15-20 minutes between terminals
!TSA re-screening: Required for some terminal changes — Terminal 1 and Terminal 2 are separate buildings. Changing between them requires the MetroLink and re-screening.
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