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Flight Reliability

DL 2657 · Delta Air Lines

Atlanta → Indianapolis (ATL–IND)88% of its flights flew this route. The rest (SAT–SLC, SLC–SAT) are included in these numbers.

82
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
7 min
Average arrival delay
1.0%
Cancelled
5 min early
Median arrival delay

Based on 210 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

DL 2657 departing between 12–3 PM arrived on time 88% of the time, versus 79% between 9 PM–12 AM.

Mondays have been rough.

DL 2657 arrived on time 92% of the time on Tuesdays and just 70% on Mondays. That gap is worth planning around.

The breakdown

On-time by weekday
  • Mon70%(33 flights)
  • Tue92%(25 flights)
  • Wed88%(24 flights)
  • Thu75%(32 flights)
  • Fri84%(31 flights)
  • Sat82%(28 flights)
  • Sun77%(34 flights)
On-time by departure window
  • 6–9 AM—(2 flights)
  • 9 AM–12 PM—(7 flights)
  • 12–3 PM88%(16 flights)
  • 3–6 PM—(1 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM79%(180 flights)
On-time trend by month
96%
May

Jun 67% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%18
July 202553%15
August 202585%27
September 202593%29
October 202572%29
November 202582%27
December 202577%31
May 202696%25
Departures on time
81%
Diverted
0.5%
Flights flown
207
Months covered
10

Same route, other flights

Keep nerding

Based on 210 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.