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Flight Reliability

DL 1738 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1738 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

86%
Arrive within 15 minutes
4 min
Average arrival delay
0%
Cancelled
7 min early
Median arrival delay

Based on 577 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(84 flights)
  • Tue92%(84 flights)
  • Wed87%(84 flights)
  • Thu83%(83 flights)
  • Fri86%(83 flights)
  • Sat83%(76 flights)
  • Sun90%(83 flights)
On-time by departure window
  • 3–6 PM86%(534 flights)
  • 6–9 PM84%(43 flights)
On-time trend by month
89%
May

Jun 87% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%60
July 202592%62
August 202581%62
September 202593%60
October 202582%62
November 202568%40
December 202576%21
January 202689%46
February 202694%18
March 202688%48
April 202688%42
May 202689%56
Departures on time
84%
Diverted
0%
Flights flown
577
Months covered
12

Keep nerding

Based on 577 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.