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Flight Reliability

DL 1931 · Delta Air Lines

Fort Lauderdale → New York (FLL–JFK)

52
A Little Dicey
WanderNerd Reliability Score
62%
Arrive within 15 minutes
25 min
Average arrival delay
2.7%
Cancelled
1 min early
Median arrival delay

Based on 186 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 1931 arrived on time 78% of the time on Wednesdays and just 46% on Sundays. That gap is worth planning around.

Lagging the FLL–JFK route.

DL 1931 arrived on time 62% of the time, versus 69% across the FLL–JFK route.

Well behind the Delta Air Lines network.

DL 1931 arrived on time 62% of the time, versus 81% across the Delta Air Lines network.

Ticking up lately.

DL 1931 arrived on time 69% of the time over the last three months in the data, compared with 63% in the three months before that.

The breakdown

On-time by weekday
  • Mon61%(28 flights)
  • Tue64%(28 flights)
  • Wed78%(27 flights)
  • Thu54%(26 flights)
  • Fri62%(26 flights)
  • Sat78%(18 flights)
  • Sun46%(28 flights)
On-time trend by month
47%
Dec

Jun 27% → Dec 47% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202527%22
July 202541%27
August 202571%31
September 202577%30
October 202580%30
November 202579%24
December 202547%17
Departures on time
56%
Diverted
0%
Flights flown
181
Months covered
7

Same route, other flights

Keep nerding

Based on 186 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.