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WanderNerd

Flight Reliability

DL 2170 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2170 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

73%
Arrive within 15 minutes
14 min
Average arrival delay
2.0%
Cancelled
5 min early
Median arrival delay

Based on 347 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(50 flights)
  • Tue67%(46 flights)
  • Wed80%(46 flights)
  • Thu75%(51 flights)
  • Fri74%(46 flights)
  • Sat80%(46 flights)
  • Sun67%(51 flights)
On-time by departure window
  • 6–9 AM92%(24 flights)
  • 9 AM–12 PM91%(21 flights)
  • 12–3 PM90%(19 flights)
  • 3–6 PM67%(205 flights)
  • 6–9 PM73%(67 flights)
On-time trend by month
87%
May

Jun 48% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%29
July 202568%28
August 202586%29
September 202587%30
October 202557%30
November 202567%30
December 202562%29
January 202672%18
February 202677%22
March 202690%31
April 202673%30
May 202687%30
Departures on time
72%
Diverted
1.2%
Flights flown
336
Months covered
12

Based on 347 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.