Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 1001 · Delta Air Lines

Atlanta → Jacksonville (ATL–JAX)97% of its flights flew this route. The rest (ATL–AGS) are included in these numbers.

66
Usually Fine
WanderNerd Reliability Score
67%
Arrive within 15 minutes
18 min
Average arrival delay
1.2%
Cancelled
0 min
Median arrival delay

Based on 330 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 1001 departing between 6–9 PM arrived on time 80% of the time, versus 65% between 9 PM–12 AM.

Saturdays have been rough.

DL 1001 arrived on time 78% of the time on Wednesdays and just 61% on Saturdays. That gap is worth planning around.

Lagging the ATL–JAX route.

DL 1001 arrived on time 67% of the time, versus 75% across the ATL–JAX route.

Lagging the Delta Air Lines network.

DL 1001 arrived on time 67% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon65%(52 flights)
  • Tue68%(44 flights)
  • Wed78%(41 flights)
  • Thu71%(49 flights)
  • Fri63%(51 flights)
  • Sat61%(38 flights)
  • Sun61%(51 flights)
On-time by departure window
  • 3–6 PM—(2 flights)
  • 6–9 PM80%(25 flights)
  • 9 PM–12 AM65%(299 flights)
On-time trend by month
43%
May

Jun 41% → May 43% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%29
July 202537%30
August 202568%31
September 202593%27
October 202587%30
November 202557%30
December 202585%27
January 202686%28
February 202674%27
March 202662%21
April 202664%25
May 202643%21
Departures on time
66%
Diverted
0%
Flights flown
326
Months covered
12

Same route, other flights

Keep nerding

Based on 330 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.