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Flight Reliability

B6 1274 · JetBlue Airways

Charleston → New York (CHS–JFK)

37
Bring Snacks
WanderNerd Reliability Score
61%
Arrive within 15 minutes
33 min
Average arrival delay
5.0%
Cancelled
0 min
Median arrival delay

Based on 262 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

B6 1274 departing between 3–6 PM arrived on time 96% of the time, versus 51% between 6–9 PM.

Tuesdays have been rough.

B6 1274 arrived on time 70% of the time on Mondays and just 50% on Tuesdays. That gap is worth planning around.

Well behind the CHS–JFK route.

B6 1274 arrived on time 61% of the time, versus 77% across the CHS–JFK route.

Lagging the JetBlue Airways network.

B6 1274 arrived on time 61% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon70%(40 flights)
  • Tue50%(26 flights)
  • Wed59%(27 flights)
  • Thu69%(39 flights)
  • Fri54%(41 flights)
  • Sat65%(37 flights)
  • Sun54%(39 flights)
On-time by departure window
  • 6–9 AM86%(35 flights)
  • 3–6 PM96%(28 flights)
  • 6–9 PM51%(186 flights)
On-time trend by month
82%
May

Jun 33% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%30
July 202522%23
August 202561%23
September 202589%18
October 202574%31
November 202574%27
December 202548%25
March 202644%16
April 202675%24
May 202682%28
Departures on time
62%
Diverted
0%
Flights flown
249
Months covered
11

Same route, other flights

Keep nerding

Based on 262 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.