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Flight Reliability

B6 333 · JetBlue Airways

Boston → San Francisco (BOS–SFO)

51
A Little Dicey
WanderNerd Reliability Score
58%
Arrive within 15 minutes
23 min
Average arrival delay
1.5%
Cancelled
9 min
Median arrival delay

Based on 332 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

B6 333 departing between 9 PM–12 AM arrived on time 72% of the time, versus 52% between 3–6 PM.

Mondays have been rough.

B6 333 arrived on time 71% of the time on Wednesdays and just 46% on Mondays. That gap is worth planning around.

Well behind the BOS–SFO route.

B6 333 arrived on time 58% of the time, versus 76% across the BOS–SFO route.

Well behind the JetBlue Airways network.

B6 333 arrived on time 58% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon46%(48 flights)
  • Tue65%(48 flights)
  • Wed71%(48 flights)
  • Thu59%(51 flights)
  • Fri46%(52 flights)
  • Sat64%(28 flights)
  • Sun56%(50 flights)
On-time by departure window
  • 3–6 PM52%(126 flights)
  • 6–9 PM56%(139 flights)
  • 9 PM–12 AM72%(60 flights)
On-time trend by month
52%
May

Jun 67% → May 52% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202555%29
August 202581%31
September 202577%22
October 202563%30
November 202548%23
December 202537%27
January 202667%24
February 202665%23
March 202648%27
April 202632%28
May 202652%31
Departures on time
58%
Diverted
0.6%
Flights flown
325
Months covered
12

Same route, other flights

Keep nerding

Based on 332 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.