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Flight Reliability

DL 772 · Delta Air Lines

San Francisco → Detroit (SFO–DTW)

97
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
6 min early
Average arrival delay
0.8%
Cancelled
13 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Skip Thursday if you can.

DL 772 arrived on time 100% of the time on Tuesdays. On Thursdays: 89%.

Better than the SFO–DTW route average.

DL 772 arrived on time 94% of the time, versus 81% across the SFO–DTW route.

Better than the Delta Air Lines network average.

DL 772 arrived on time 94% of the time, versus 81% across the Delta Air Lines network.

Ticking up lately.

DL 772 arrived on time 96% of the time over the last three months in the data, compared with 90% in the three months before that.

The breakdown

On-time by weekday
  • Mon92%(51 flights)
  • Tue100%(52 flights)
  • Wed96%(52 flights)
  • Thu89%(52 flights)
  • Fri96%(52 flights)
  • Sat90%(50 flights)
  • Sun92%(52 flights)
On-time by departure window
  • 3–6 AM94%(339 flights)
  • 6–9 AM91%(22 flights)
On-time trend by month
94%
May

Jun 93% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%28
July 2025100%30
August 202597%31
September 202583%30
October 202594%31
November 2025100%30
December 202583%30
January 202697%31
February 202689%28
March 202697%31
April 202697%30
May 202694%31
Departures on time
96%
Diverted
0.3%
Flights flown
361
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.