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Flight Reliability

B6 1104 · JetBlue Airways

San Juan → New York (SJU–JFK)95% of its flights flew this route. The rest (RSW–BDL) are included in these numbers.

71
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
2 min
Average arrival delay
3.6%
Cancelled
8 min early
Median arrival delay

Based on 165 historical flights. Data through May 2026.

What the data says

Mondays have been rough.

B6 1104 arrived on time 91% of the time on Wednesdays and just 65% on Mondays. That gap is worth planning around.

A bit ahead of the JetBlue Airways network.

B6 1104 arrived on time 80% of the time, versus 73% across the JetBlue Airways network.

Keep a backup plan handy.

B6 1104 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

B6 1104 arrived on time 88% of the time over the last three months in the data, compared with 73% in the three months before that.

The breakdown

On-time by weekday
  • Mon65%(23 flights)
  • Tue88%(24 flights)
  • Wed91%(23 flights)
  • Thu83%(24 flights)
  • Fri81%(21 flights)
  • Sat83%(18 flights)
  • Sun68%(25 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM—(8 flights)
  • 9 AM–12 PM79%(29 flights)
  • 12–3 PM78%(111 flights)
  • 3–6 PM—(9 flights)
On-time trend by month
90%
May

Nov 79% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202579%28
December 202579%29
February 202660%15
March 202690%20
April 202683%29
May 202690%20
Departures on time
81%
Diverted
0.6%
Flights flown
158
Months covered
9

Same route, other flights

Keep nerding

Based on 165 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.