SAT (San Antonio) to DEN (Denver) flights arrive on time 83% of the time. The most reliable airline on this route is SkyWest Airlines at 90%. The average delay is 71 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.SAT → DEN
SAT (San Antonio) to DEN (Denver)
SAT → DEN on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 83% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
SkyWest Airlines is significantly more reliable on this route at 90% on time vs Frontier Airlines at 71%.
Airline Comparison
SkyWest Airlines leads at 90% on time; Frontier Airlines trails at 71%.
Accurate?
Good to know
Departing from SAT
81% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at DEN
78% on timeWhen flights into DEN are late, the average delay is 67 minutes. Build buffer if you have ground plans.
If connecting at DEN: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.