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Flight Reliability

B6 2120 · JetBlue Airways

San Diego → Boston (SAN–BOS)

90
Nerd Approved
WanderNerd Reliability Score
86%
Arrive within 15 minutes
2 min early
Average arrival delay
0.8%
Cancelled
20 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

B6 2120 departing between 9 PM–12 AM arrived on time 93% of the time, versus 81% between 6–9 PM.

Sunday scaries are real for this one.

B6 2120 arrived on time 92% of the time on Wednesdays. On Sundays: 78%.

Better than the SAN–BOS route average.

B6 2120 arrived on time 86% of the time, versus 78% across the SAN–BOS route.

Better than the JetBlue Airways network average.

B6 2120 arrived on time 86% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon84%(51 flights)
  • Tue83%(52 flights)
  • Wed92%(52 flights)
  • Thu84%(51 flights)
  • Fri87%(52 flights)
  • Sat90%(52 flights)
  • Sun78%(51 flights)
On-time by departure window
  • 6–9 PM81%(217 flights)
  • 9 PM–12 AM93%(144 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202587%31
August 202594%31
September 202587%30
October 202594%31
November 202579%29
December 202581%31
January 202687%30
February 202677%26
March 202677%31
April 202670%30
May 202697%31
Departures on time
80%
Diverted
0%
Flights flown
361
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.