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Flight Reliability

DL 4244 · Delta Air Lines

ESC → Detroit (ESC–DTW)

63
A Little Dicey
WanderNerd Reliability Score
86%
Arrive within 15 minutes
13 min
Average arrival delay
7.4%
Cancelled
16 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Skip Monday if you can.

DL 4244 arrived on time 96% of the time on Thursdays. On Mondays: 83%.

A bit ahead of the Delta Air Lines network.

DL 4244 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 4244 was cancelled 7.4% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

DL 4244 arrived on time 84% of the time over the last three months in the data, compared with 74% in the three months before that.

The breakdown

On-time by weekday
  • Mon83%(47 flights)
  • Tue83%(48 flights)
  • Wed85%(48 flights)
  • Thu96%(49 flights)
  • Fri86%(50 flights)
  • Sat83%(48 flights)
  • Sun85%(48 flights)
On-time by departure window
  • 6–9 AM86%(337 flights)
  • 9 AM–12 PM—(1 flights)
On-time trend by month
94%
May

Jun 100% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202587%31
August 202597%31
September 202593%30
October 202590%31
November 202586%29
December 202567%27
January 202671%28
February 202683%24
March 202667%24
April 202691%22
May 202694%31
Departures on time
91%
Diverted
0%
Flights flown
338
Months covered
12

Keep nerding

Based on 365 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.