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Flight Reliability

DL 2619 · Delta Air Lines

Salt Lake City → Milwaukee (SLC–MKE)96% of its flights flew this route. The rest (DFW–DTW) are included in these numbers.

84
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
11 min
Average arrival delay
0.8%
Cancelled
8 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

Thursdays have been rough.

DL 2619 arrived on time 89% of the time on Saturdays and just 72% on Thursdays. That gap is worth planning around.

Slipping a little lately.

DL 2619 arrived on time 83% of the time over the last three months in the data, compared with 86% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(51 flights)
  • Tue87%(52 flights)
  • Wed85%(52 flights)
  • Thu72%(50 flights)
  • Fri78%(50 flights)
  • Sat89%(52 flights)
  • Sun73%(51 flights)
On-time by departure window
  • 3–6 PM81%(329 flights)
  • 6–9 PM79%(29 flights)
On-time trend by month
81%
May

Jun 73% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202584%31
August 202558%31
September 202586%29
October 202587%31
November 202572%29
December 202583%29
January 202690%31
February 202686%28
March 202693%29
April 202676%29
May 202681%31
Departures on time
82%
Diverted
0.3%
Flights flown
358
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.