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Flight Reliability

B6 578 · JetBlue Airways

San Francisco → Fort Lauderdale (SFO–FLL)95% of its flights flew this route. The rest (JAX–JFK) are included in these numbers.

85
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
7 min early
Median arrival delay

Based on 218 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

B6 578 departing between 6–9 AM arrived on time 89% of the time, versus 62% between 9 AM–12 PM.

Sunday scaries are real for this one.

B6 578 arrived on time 87% of the time on Thursdays. On Sundays: 72%.

Better than the JetBlue Airways network average.

B6 578 arrived on time 81% of the time, versus 73% across the JetBlue Airways network.

Recent months have been rougher.

B6 578 arrived on time 76% of the time over the last three months in the data, compared with 83% in the three months before that.

The breakdown

On-time by weekday
  • Mon84%(31 flights)
  • Tue84%(31 flights)
  • Wed78%(32 flights)
  • Thu87%(30 flights)
  • Fri87%(30 flights)
  • Sat77%(30 flights)
  • Sun72%(32 flights)
On-time by departure window
  • 6–9 AM89%(150 flights)
  • 9 AM–12 PM62%(55 flights)
  • 6–9 PM64%(11 flights)
On-time trend by month
95%
May

Jun 64% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%11
November 202597%30
December 202587%31
January 202690%31
February 202671%28
March 202679%29
April 202653%30
May 202695%20
Departures on time
89%
Diverted
0.5%
Flights flown
216
Months covered
9

Same route, other flights

Keep nerding

Based on 218 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.