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Flight Reliability

B6 1303 · JetBlue Airways

Boston → Phoenix (BOS–PHX)99% of its flights flew this route. The rest (JFK–PBI) are included in these numbers.

71
Usually Fine
WanderNerd Reliability Score
71%
Arrive within 15 minutes
8 min
Average arrival delay
1.9%
Cancelled
1 min
Median arrival delay

Based on 161 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

B6 1303 departing between 9 AM–12 PM arrived on time 93% of the time, versus 67% between 6–9 PM.

Friday is doing you no favors.

B6 1303 arrived on time 82% of the time on Tuesdays and just 48% on Fridays. That gap is worth planning around.

A bit behind the BOS–PHX route.

B6 1303 arrived on time 71% of the time, versus 77% across the BOS–PHX route.

Ticking up lately.

B6 1303 arrived on time 74% of the time over the last three months in the data, compared with 69% in the three months before that.

The breakdown

On-time by weekday
  • Mon77%(22 flights)
  • Tue82%(22 flights)
  • Wed82%(22 flights)
  • Thu65%(23 flights)
  • Fri48%(23 flights)
  • Sat70%(23 flights)
  • Sun74%(23 flights)
On-time by departure window
  • 9 AM–12 PM93%(15 flights)
  • 3–6 PM70%(54 flights)
  • 6–9 PM67%(89 flights)
On-time trend by month
65%
May

Jun 67% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
October 202571%24
December 202557%14
January 202679%29
February 202664%11
April 202694%17
May 202665%26
Departures on time
74%
Diverted
0%
Flights flown
158
Months covered
9

Same route, other flights

Keep nerding

Based on 161 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.