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Flight Reliability

DL 1207 · Delta Air Lines

Detroit → Dallas–Fort Worth (DTW–DFW)

69
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
13 min
Average arrival delay
1.7%
Cancelled
2 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 1207 departing between 9 PM–12 AM arrived on time 79% of the time, versus 69% between 6–9 PM.

Saturdays have been rough.

DL 1207 arrived on time 82% of the time on Tuesdays and just 63% on Saturdays. That gap is worth planning around.

A bit behind the DTW–DFW route.

DL 1207 arrived on time 72% of the time, versus 77% across the DTW–DFW route.

Lagging the Delta Air Lines network.

DL 1207 arrived on time 72% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon66%(50 flights)
  • Tue82%(50 flights)
  • Wed76%(50 flights)
  • Thu80%(51 flights)
  • Fri68%(50 flights)
  • Sat63%(51 flights)
  • Sun71%(51 flights)
On-time by departure window
  • 3–6 PM—(1 flights)
  • 6–9 PM69%(247 flights)
  • 9 PM–12 AM79%(105 flights)
On-time trend by month
83%
May

Jun 48% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%27
July 202558%31
August 202581%31
September 202590%30
October 202581%31
November 202570%30
December 202564%28
January 202661%28
February 202675%28
March 202673%30
April 202680%30
May 202683%29
Departures on time
73%
Diverted
0.8%
Flights flown
353
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.