OnTimeRoutes
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Alaska Airlines JFK to SFO on-time performance

Alaska Airlines nonstop flights from New York to San Francisco · Aug 2025 – Jul 2026

On-time arrivals
72%
arrived < 15 min late
Cancelled
2.2%
24 flights
Avg arrival delay
20 min
67 min when late
Rank on route
#3 of 4
route average 73% on time

Key facts

  • Alaska Airlines flights on JFK to SFO arrived on time 72% of the time in Aug 2025 – Jul 2026.
  • 2.2% were cancelled, and 10% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 73% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (42%).

On-time trend by month

40%70%100%July 2025: 55.4% on time, 1.1% cancelledJul ’25August 2025: 69.6% on time, 1.1% cancelledAug ’25September 2025: 85.2% on time, 2.2% cancelledSep ’25October 2025: 60.5% on time, 0.9% cancelledOct ’25November 2025: 74.2% on time, 1.0% cancelledNov ’25December 2025: 67.5% on time, 1.7% cancelledDec ’25January 2026: 73.2% on time, 6.7% cancelledJan ’26February 2026: 87.2% on time, 11.1% cancelledFeb ’26March 2026: 80.7% on time, 1.2% cancelledMar ’26April 2026: 81.2% on time, 0.0% cancelledApr ’26May 2026: 78.3% on time, 0.9% cancelledMay ’26June 2026: 57.6% on time, 0.0% cancelledJun ’26July 2026: 67.0% on time, 5.4% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion42%
  • Late-arriving aircraft33%
  • Airline (crew, maintenance, cleaning, fueling)21%
  • Extreme weather3%
  • Security1%

Other airlines on JFK to SFO

Full JFK to SFO comparison →
Alaska Airlines on-time record across all routes →

1,108 Alaska Airlines flights tracked on this route; 24 cancelled, 3 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.