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Flight Reliability

DL 3738 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3738 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
1.2%
Cancelled
10 min early
Median arrival delay

Based on 337 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(49 flights)
  • Tue82%(50 flights)
  • Wed85%(48 flights)
  • Thu86%(51 flights)
  • Fri92%(50 flights)
  • Sat97%(33 flights)
  • Sun86%(51 flights)
On-time by departure window
  • 6–9 AM87%(15 flights)
  • 12–3 PM87%(192 flights)
  • 3–6 PM82%(99 flights)
  • 9 PM–12 AM77%(26 flights)
On-time trend by month
78%
May

Jun 85% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%33
July 202579%29
September 202591%21
October 2025100%30
November 202596%27
December 202590%29
February 202694%18
March 202672%47
April 202679%38
May 202678%46
Departures on time
84%
Diverted
0.3%
Flights flown
332
Months covered
12

Keep nerding

Based on 337 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.