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Flight Reliability

B6 391 · JetBlue Airways

Boston → Tampa (BOS–TPA)

51
A Little Dicey
WanderNerd Reliability Score
61%
Arrive within 15 minutes
20 min
Average arrival delay
2.3%
Cancelled
4 min
Median arrival delay

Based on 308 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

B6 391 departing between 12–3 PM arrived on time 82% of the time, versus 59% between 3–6 PM.

Sunday scaries are real for this one.

B6 391 arrived on time 80% of the time on Wednesdays and just 41% on Sundays. That gap is worth planning around.

Lagging the BOS–TPA route.

B6 391 arrived on time 61% of the time, versus 75% across the BOS–TPA route.

Lagging the JetBlue Airways network.

B6 391 arrived on time 61% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon56%(43 flights)
  • Tue75%(40 flights)
  • Wed80%(39 flights)
  • Thu73%(45 flights)
  • Fri48%(46 flights)
  • Sat56%(39 flights)
  • Sun41%(46 flights)
On-time by departure window
  • 12–3 PM82%(22 flights)
  • 3–6 PM59%(152 flights)
  • 6–9 PM59%(123 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
77%
May

Jun 50% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%14
July 202546%28
August 202568%31
October 202535%17
November 202552%27
December 202555%29
January 202672%29
February 202654%26
March 202668%31
April 202677%30
May 202677%30
Departures on time
57%
Diverted
1.0%
Flights flown
298
Months covered
12

Same route, other flights

Keep nerding

Based on 308 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.