Historical on-time performance
San Antonio to New York
1,587 miData through May 2026Source: US DOT · BTS
Flights on SAT–JFK arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled3.6%of scheduled flights
based on 305 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time78%Medianon timep9045 minCancel3.6%Flights305
Why flights run late
Delay causes
- Airline11%
- Weather20%
- Air traffic (NAS)26%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline73%
- Weather27%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 11 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SAT → JFK
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 76% on time.
- Middays76% on time · p90 55 min · 803 flights
- Afternoons68% on time · p90 70 min · 707 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 76% on time.
- Mondays76% on time · p90 85 min · 229 flights
- Thursdays75% on time · p90 55 min · 229 flights
- Wednesdays74% on time · p90 60 min · 225 flights
- Tuesdays70% on time · p90 50 min · 227 flights
- Saturdays70% on time · p90 70 min · 228 flights
- Fridays69% on time · p90 70 min · 231 flights
- Sundays67% on time · p90 100 min · 230 flights
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