Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 2440 · Delta Air Lines

Jacksonville → Atlanta (JAX–ATL)

94
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
1 min
Average arrival delay
1.7%
Cancelled
8 min early
Median arrival delay

Based on 359 historical flights. Data through May 2026.

What the data says

Mondays have been rough.

DL 2440 arrived on time 100% of the time on Wednesdays and just 84% on Mondays. That gap is worth planning around.

Better than the JAX–ATL route average.

DL 2440 arrived on time 93% of the time, versus 85% across the JAX–ATL route.

Better than the Delta Air Lines network average.

DL 2440 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.

Slipping a little lately.

DL 2440 arrived on time 92% of the time over the last three months in the data, compared with 97% in the three months before that.

The breakdown

On-time by weekday
  • Mon84%(51 flights)
  • Tue94%(51 flights)
  • Wed100%(52 flights)
  • Thu92%(52 flights)
  • Fri98%(51 flights)
  • Sat91%(46 flights)
  • Sun92%(50 flights)
On-time trend by month
100%
May

Jun 100% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%28
July 202577%31
August 2025100%30
September 202593%30
October 202589%28
November 202593%28
December 202594%31
January 2026100%29
February 202696%27
March 202683%30
April 202693%30
May 2026100%31
Departures on time
93%
Diverted
0%
Flights flown
353
Months covered
12

Same route, other flights

Keep nerding

Based on 359 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.