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Flight Reliability

DL 3197 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3197 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

89%
Arrive within 15 minutes
3 min early
Average arrival delay
1.2%
Cancelled
10 min early
Median arrival delay

Based on 423 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(62 flights)
  • Tue89%(65 flights)
  • Wed97%(65 flights)
  • Thu94%(62 flights)
  • Fri85%(58 flights)
  • Sat84%(44 flights)
  • Sun86%(62 flights)
On-time by departure window
  • 6–9 AM95%(19 flights)
  • 9 AM–12 PM89%(399 flights)
On-time trend by month
96%
Apr

Jun 89% → Apr 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%44
July 202595%61
August 202594%62
September 202588%60
October 202598%58
November 202574%50
December 202577%34
March 202681%21
April 202696%22
Departures on time
90%
Diverted
0%
Flights flown
418
Months covered
10

Keep nerding

Based on 423 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.