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Flight Reliability

B6 1273 · JetBlue Airways

New York → Charleston (JFK–CHS)

77
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
3 min
Average arrival delay
2.9%
Cancelled
8 min early
Median arrival delay

Based on 343 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

B6 1273 departing between 6–9 AM arrived on time 83% of the time, versus 46% between 6–9 PM.

Sunday scaries are real for this one.

B6 1273 arrived on time 91% of the time on Wednesdays and just 71% on Sundays. That gap is worth planning around.

A bit ahead of the JFK–CHS route.

B6 1273 arrived on time 80% of the time, versus 76% across the JFK–CHS route.

Better than the JetBlue Airways network average.

B6 1273 arrived on time 80% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon78%(50 flights)
  • Tue81%(42 flights)
  • Wed91%(43 flights)
  • Thu75%(51 flights)
  • Fri84%(51 flights)
  • Sat84%(44 flights)
  • Sun71%(52 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM83%(289 flights)
  • 9 AM–12 PM80%(10 flights)
  • 3–6 PM64%(11 flights)
  • 6–9 PM46%(22 flights)
On-time trend by month
97%
May

Jun 90% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202584%31
August 202584%31
September 202597%30
October 202583%29
November 202562%29
December 202554%24
January 202671%17
February 202650%20
March 202684%31
April 202687%30
May 202697%31
Departures on time
84%
Diverted
0%
Flights flown
333
Months covered
12

Same route, other flights

Keep nerding

Based on 343 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.