SAT (San Antonio) to BWI (Baltimore) flights arrive on time 85% of the time. The most reliable airline on this route is Southwest Airlines at 85%. The average delay is 53 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated May 2026.SAT → BWI
SAT (San Antonio) to BWI (Baltimore)
SAT → BWI on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 85% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
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Good to know
Departing from SAT
81% on timeTSA is currently ~18 min. Best time: 4 AM (about 5 min).
Arriving at BWI
78% on timeWhen flights into BWI are late, the average delay is 58 minutes. Build buffer if you have ground plans.
If connecting at BWI: TSA is ~23 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated May 2026. Source: Bureau of Transportation Statistics.