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WanderNerd

Flight Reliability

DL 3707 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3707 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

74%
Arrive within 15 minutes
8 min
Average arrival delay
1.7%
Cancelled
1 min early
Median arrival delay

Based on 689 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(102 flights)
  • Tue75%(93 flights)
  • Wed82%(90 flights)
  • Thu68%(102 flights)
  • Fri74%(100 flights)
  • Sat82%(84 flights)
  • Sun67%(106 flights)
On-time by departure window
  • 12–3 PM79%(289 flights)
  • 3–6 PM69%(349 flights)
  • 6–9 PM80%(39 flights)
On-time trend by month
48%
May

Jun 77% → May 48% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%60
July 202582%62
August 202581%62
September 202585%60
October 202574%62
November 202578%54
December 202583%58
January 202664%50
February 202687%45
March 202683%52
April 202642%52
May 202648%60
Departures on time
80%
Diverted
0%
Flights flown
677
Months covered
12

Based on 689 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.