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Flight Reliability

B6 277 · JetBlue Airways

Fort Lauderdale → San Francisco (FLL–SFO)

66
Usually Fine
WanderNerd Reliability Score
64%
Arrive within 15 minutes
14 min
Average arrival delay
0.8%
Cancelled
3 min
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

B6 277 departing between 9 PM–12 AM arrived on time 72% of the time, versus 64% between 6–9 PM.

Mondays have been rough.

B6 277 arrived on time 78% of the time on Wednesdays and just 52% on Mondays. That gap is worth planning around.

Well behind the FLL–SFO route.

B6 277 arrived on time 64% of the time, versus 81% across the FLL–SFO route.

Lagging the JetBlue Airways network.

B6 277 arrived on time 64% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon52%(50 flights)
  • Tue77%(52 flights)
  • Wed78%(51 flights)
  • Thu56%(50 flights)
  • Fri58%(52 flights)
  • Sat75%(52 flights)
  • Sun54%(52 flights)
On-time by departure window
  • 6–9 PM64%(334 flights)
  • 9 PM–12 AM72%(25 flights)
On-time trend by month
81%
May

Jun 67% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202567%30
August 202561%31
September 202573%30
October 202570%30
November 202568%28
December 202552%31
January 202661%31
February 202644%27
March 202663%30
April 202663%30
May 202681%31
Departures on time
64%
Diverted
0.3%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 363 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.