Historical on-time performance
New York to San Francisco
Flights on JFK–SFO arrive on time 73% of the time over the last 12 months.
based on 6,707 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- JetBlue AirwaysOn-time76%Medianon timep9055 minCancel2.0%Flights1,946
- American AirlinesOn-time75%Medianon timep9050 minCancel2.7%Flights1,421
- Delta Air LinesOn-time72%Medianon timep9060 minCancel1.3%Flights2,230
- Alaska AirlinesOn-time69%Medianon timep9060 minCancel2.2%Flights1,110
Why flights run late
Delay causes
- Airline28%
- Weather3%
- Air traffic (NAS)40%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline15%
- Weather74%
- Air traffic (NAS)11%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 131 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 JFK → SFO
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 85% on time.
- Mornings85% on time · p90 20 min · 6,688 flights
- Middays78% on time · p90 40 min · 3,368 flights
- Afternoons76% on time · p90 55 min · 3,030 flights
- Evenings70% on time · p90 65 min · 3,713 flights
- Overnights67% on time · p90 80 min · 3,431 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 82% on time.
- Tuesdays82% on time · p90 30 min · 2,900 flights
- Wednesdays80% on time · p90 35 min · 2,910 flights
- Thursdays78% on time · p90 50 min · 3,013 flights
- Fridays76% on time · p90 50 min · 3,015 flights
- Saturdays75% on time · p90 45 min · 2,356 flights
- Mondays75% on time · p90 50 min · 3,018 flights
- Sundays73% on time · p90 60 min · 3,018 flights
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