Historical on-time performance
New York to San Diego
2,446 miData through Dec 2025Source: US DOT · BTS
Flights on JFK–SAN arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 2,383 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- JetBlue AirwaysbestOn-time84%Medianon timep9025 minCancel1.7%Flights723
- Delta Air LinesOn-time77%Medianon timep9040 minCancel1.5%Flights1,033
- Alaska AirlinesOn-time70%Medianon timep9050 minCancel1.3%Flights627
Why flights run late
Delay causes
- Airline31%
- Weather2%
- Air traffic (NAS)45%
- Late aircraft21%
- Security1%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly JFK → SAN
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 84% on time.
- Mornings84% on time · p90 25 min · 2,915 flights
- Middays79% on time · p90 35 min · 215 flights
- Afternoons77% on time · p90 35 min · 2,094 flights
- Overnights73% on time · p90 55 min · 1,027 flights
- Evenings71% on time · p90 55 min · 1,056 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 84% on time.
- Tuesdays84% on time · p90 25 min · 1,010 flights
- Wednesdays81% on time · p90 30 min · 1,025 flights
- Mondays80% on time · p90 35 min · 1,064 flights
- Thursdays78% on time · p90 40 min · 1,067 flights
- Fridays77% on time · p90 40 min · 1,077 flights
- Saturdays75% on time · p90 45 min · 983 flights
- Sundays74% on time · p90 40 min · 1,081 flights
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