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Flight Reliability

DL 2579 · Delta Air Lines

Baltimore → Atlanta (BWI–ATL)93% of its flights flew this route. The rest (GSO–ATL) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
1 min
Average arrival delay
1.4%
Cancelled
8 min early
Median arrival delay

Based on 350 historical flights. Data through May 2026.

What the data says

Wednesday is the weak spot.

DL 2579 arrived on time 94% of the time on Thursdays. On Wednesdays: 86%.

Better than the BWI–ATL route average.

DL 2579 arrived on time 90% of the time, versus 80% across the BWI–ATL route.

Better than the Delta Air Lines network average.

DL 2579 arrived on time 90% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon88%(48 flights)
  • Tue94%(48 flights)
  • Wed86%(49 flights)
  • Thu94%(50 flights)
  • Fri94%(50 flights)
  • Sat88%(49 flights)
  • Sun88%(49 flights)
On-time by departure window
  • 6–9 AM90%(319 flights)
  • 3–6 PM92%(24 flights)
On-time trend by month
90%
May

Jun 82% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%28
July 202584%31
August 202594%31
September 202590%30
October 202584%31
November 202590%30
December 202587%31
January 2026100%14
February 202696%28
March 202693%30
April 202697%29
May 202690%30
Departures on time
91%
Diverted
0.6%
Flights flown
343
Months covered
12

Same route, other flights

Keep nerding

Based on 350 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.