EWR (Newark) to SAT (San Antonio) flights arrive on time 85% of the time. The most reliable airline on this route is Spirit Airlines at 85%. The average delay is 70 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated May 2026.EWR → SAT
EWR (Newark) to SAT (San Antonio)
EWR → SAT on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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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.
Accurate?
Airlines are roughly equal on this route — Spirit Airlines leads slightly at 85% vs United Airlines at 84%.
Airline Comparison
Spirit Airlines leads at 85% on time; United Airlines trails at 84%.
Accurate?
Good to know
Departing from EWR
77% on timeExpect ~21 min sitting on the taxiway after your gate pushes back. EWR has long runway queues.
TSA is currently ~27 min. Best time: 4 AM (about 5 min).
EWR cancels 3.1% of flights — higher than average. Have a backup plan.
Arriving at SAT
81% on timeWhen flights into SAT are late, the average delay is 67 minutes. Build buffer if you have ground plans.
If connecting at SAT: TSA is ~18 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Data last updated May 2026. Source: Bureau of Transportation Statistics.