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Flight Reliability

DL 1897 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1897 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

74%
Arrive within 15 minutes
3 min
Average arrival delay
2.3%
Cancelled
10 min early
Median arrival delay

Based on 256 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(47 flights)
  • Tue70%(20 flights)
  • Wed85%(20 flights)
  • Thu80%(49 flights)
  • Fri68%(47 flights)
  • Sat83%(18 flights)
  • Sun71%(49 flights)
On-time by departure window
  • 12–3 PM—(3 flights)
  • 3–6 PM80%(91 flights)
  • 6–9 PM72%(156 flights)
On-time trend by month
59%
Dec

Jun 33% → Dec 59% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%21
July 202565%34
August 202587%39
September 202590%41
October 202578%46
November 202585%39
December 202559%29
Departures on time
72%
Diverted
0%
Flights flown
250
Months covered
8

Keep nerding

Based on 256 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.