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Flight Reliability

B6 519 · JetBlue Airways

New York → Atlanta (JFK–ATL)

63
A Little Dicey
WanderNerd Reliability Score
75%
Arrive within 15 minutes
7 min
Average arrival delay
5.0%
Cancelled
5 min early
Median arrival delay

Based on 300 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

B6 519 departing between 6–9 AM arrived on time 78% of the time, versus 58% between 9 AM–12 PM.

Sunday scaries are real for this one.

B6 519 arrived on time 81% of the time on Wednesdays and just 64% on Sundays. That gap is worth planning around.

Keep a backup plan handy.

B6 519 was cancelled 5.0% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

B6 519 arrived on time 88% of the time over the last three months in the data, compared with 60% in the three months before that.

The breakdown

On-time by weekday
  • Mon74%(42 flights)
  • Tue67%(43 flights)
  • Wed81%(37 flights)
  • Thu79%(43 flights)
  • Fri81%(42 flights)
  • Sat81%(36 flights)
  • Sun64%(42 flights)
On-time by departure window
  • 6–9 AM78%(240 flights)
  • 9 AM–12 PM58%(45 flights)
On-time trend by month
84%
May

Jun 90% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202570%30
August 202565%31
November 202573%26
December 202536%28
January 202663%19
February 202681%21
March 202687%31
April 202693%30
May 202684%31
Departures on time
80%
Diverted
0%
Flights flown
285
Months covered
12

Same route, other flights

Keep nerding

Based on 300 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.