BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
JFK→SFO

New York, NY (JFK) to San Francisco, CA (SFO) flight delay odds

72.6% of 6,730 official scheduled JFK-to-SFO flights arrived on time; 16.9% arrived at least 30 minutes late and 1.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
72.6%arrived on time
16.9%30+ min late
1.9%cancelled
6,730scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.6%all scheduled flights
120+ minutes late3.9%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+7.2 mincompleted flights

Which departure time was most reliable for JFK to SFO?

Among qualifying JFK-to-SFO departure window results, Early morning had the highest on-time rate: 82.8% of 1,590 flights. Evening was lowest at 62.8% across 2,073 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,59082.8%7.5%1.8%
Late morning1,33676.9%13.6%1.6%
Afternoon1,37973.1%17.3%1.8%
Evening2,07362.8%25.2%2.0%
Night35265.6%21.9%3.7%

Which weekday was most reliable for JFK to SFO?

Among qualifying JFK-to-SFO weekday results, Tuesday had the highest on-time rate: 79.5% of 963 flights. Sunday was lowest at 67.4% across 1,009 flights.

DayFlightsOn time30+ minCancelled
Monday1,01268.0%20.2%3.5%
Tuesday96379.5%11.5%2.4%
Wednesday94076.2%15.1%0.4%
Thursday99768.9%20.6%1.0%
Friday1,00675.0%15.5%0.9%
Saturday80373.7%14.6%1.6%
Sunday1,00967.4%20.3%3.5%

Which airline was most reliable for JFK to SFO?

Among qualifying JFK-to-SFO airline results, American Airlines had the highest on-time rate: 75.1% of 1,448 flights. Alaska Airlines was lowest at 69.9% across 1,108 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,22970.1%19.0%1.5%
JetBlue Airways1,94575.1%15.9%2.0%
American Airlines1,44875.1%14.2%2.6%
Alaska Airlines1,10869.9%18.1%1.8%

Which month was most reliable for JFK to SFO?

Among qualifying JFK-to-SFO month results, September 2025 had the highest on-time rate: 85.3% of 579 flights. June 2026 was lowest at 60.2% across 611 flights.

MonthFlightsOn time30+ minCancelled
July 202558269.8%21.8%3.3%
August 202559184.1%11.2%0.2%
September 202557985.3%10.5%0.3%
October 202561171.7%18.0%0.5%
November 202554674.5%13.9%0.9%
December 202553762.9%23.8%2.8%
January 202653971.4%14.3%5.9%
February 202646571.2%14.4%8.2%
March 202653380.7%12.2%0.9%
April 202654370.5%16.4%0.0%
May 202659368.6%19.6%0.5%
June 202661160.2%25.9%1.0%

What drove JFK to SFO delay minutes?

National airspace was the largest recorded JFK-to-SFO delay category, accounting for 42.2% of 120,223 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.5%
Late aircraft27.1%
National airspace42.2%
Weather2.9%
Security0.3%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.