JFK (New York) to SAT (San Antonio) flights arrive on time 86% of the time. The most reliable airline on this route is Delta Air Lines at 89%. The average delay is 83 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.JFK → SAT
JFK (New York) to SAT (San Antonio)
JFK → SAT on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is usually on time. About 86% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines is significantly more reliable on this route at 89% on time vs JetBlue Airways at 71%.
Airline Comparison
Delta Air Lines leads at 89% on time; JetBlue Airways trails at 71%.
Accurate?
Good to know
Departing from JFK
78% on timeExpect ~23 min sitting on the taxiway after your gate pushes back. JFK has long runway queues.
TSA is currently ~31 min. Best time: 4 AM (about 5 min).
JFK cancels 2.4% of flights — higher than average. Have a backup plan.
Arriving at SAT
81% on timeWhen flights into SAT are late, the average delay is 70 minutes. Build buffer if you have ground plans.
If connecting at SAT: TSA is ~30 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
Flying out of JFK? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.