Which departure time was most reliable for SFO to JFK?
Among qualifying SFO-to-JFK departure window results, Early morning had the highest on-time rate: 86.9% of 1,744 flights. Afternoon was lowest at 68.7% across 1,868 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 1,744 | 86.9% | 5.9% | 1.5% |
| Late morning | 1,452 | 76.4% | 14.1% | 2.0% |
| Afternoon | 1,868 | 68.7% | 19.9% | 2.2% |
| Evening | 64 | 85.9% | 6.2% | 1.6% |
| Night | 1,601 | 80.2% | 11.2% | 2.1% |
Which weekday was most reliable for SFO to JFK?
Among qualifying SFO-to-JFK weekday results, Tuesday had the highest on-time rate: 82.2% of 963 flights. Sunday was lowest at 71.7% across 1,007 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 1,004 | 75.9% | 15.3% | 3.0% |
| Tuesday | 963 | 82.2% | 10.6% | 1.0% |
| Wednesday | 949 | 80.6% | 12.8% | 0.6% |
| Thursday | 997 | 76.8% | 13.5% | 1.2% |
| Friday | 1,002 | 80.0% | 11.1% | 1.3% |
| Saturday | 807 | 79.2% | 11.0% | 2.0% |
| Sunday | 1,007 | 71.7% | 15.0% | 4.6% |
Which airline was most reliable for SFO to JFK?
Among qualifying SFO-to-JFK airline results, JetBlue Airways had the highest on-time rate: 79.4% of 1,945 flights. Alaska Airlines was lowest at 75.1% across 1,107 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 2,229 | 78.3% | 13.1% | 1.6% |
| JetBlue Airways | 1,945 | 79.4% | 12.2% | 2.0% |
| American Airlines | 1,448 | 77.8% | 13.3% | 2.9% |
| Alaska Airlines | 1,107 | 75.1% | 12.8% | 1.6% |
Which month was most reliable for SFO to JFK?
Among qualifying SFO-to-JFK month results, September 2025 had the highest on-time rate: 85.3% of 579 flights. July 2025 was lowest at 65.3% across 582 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 582 | 65.3% | 22.5% | 3.6% |
| August 2025 | 591 | 82.9% | 10.2% | 0.8% |
| September 2025 | 579 | 85.3% | 6.2% | 0.3% |
| October 2025 | 611 | 83.3% | 9.8% | 0.7% |
| November 2025 | 546 | 80.2% | 10.8% | 1.1% |
| December 2025 | 536 | 77.6% | 14.2% | 2.4% |
| January 2026 | 539 | 76.3% | 11.7% | 5.8% |
| February 2026 | 465 | 78.9% | 9.7% | 7.5% |
| March 2026 | 533 | 82.9% | 10.9% | 0.9% |
| April 2026 | 543 | 79.6% | 10.9% | 0.0% |
| May 2026 | 593 | 74.7% | 14.5% | 0.7% |
| June 2026 | 611 | 69.7% | 21.3% | 1.1% |
What drove SFO to JFK delay minutes?
Airline was the largest recorded SFO-to-JFK delay category, accounting for 34.7% of 102,278 BTS-attributed delay minutes during July 2025–June 2026.
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