Best Time to Fly SAT to JFK: On-Time Stats by Hour & Airline
San Antonio International → John F. Kennedy International
Data through July 2026 · Last updated October 18, 2026
362 flights were scheduled from San Antonio (SAT) to New York (JFK) in the last 12 months, and 82.0% of those that flew arrived on time, 4.4 points above the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
April has been the best month (93% on time) and Sunday the weakest day of the week (73%).
4.4% of flights were cancelled, versus 1.8% nationally.
SAT to JFK on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 82.0% | 114 min | 4.4% | 362 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAT to JFK
On-time arrival % by scheduled departure hour (local time), 808 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 10am–11am | Limited data | 1 | |
| 11am–12pm | 76.2% | 2.0% | 150 |
| 12pm–1pm | 81.8% | 2.9% | 452 |
| 1pm–2pm | 76.9% | 5.6% | 125 |
| 2pm–3pm | Limited data | 27 | |
| 4pm–5pm | 76.9% | 1.9% | 53 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAT to JFK
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 27 | ||
| Summer peak (Jun 15 - Aug 15) | 61.9% | -22.1 pts | 7.9% | 139 |
| All other days | 84.0% | — | 2.1% | 628 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).