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WanderNerd

Flight Reliability

DL 794 · Delta Air Lines

Detroit → Los Angeles (DTWLAX)83% of its flights flew this route. The rest (SEA–SFO, SFO–SEA) are included in these numbers.

87
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
3 min
Average arrival delay
0.7%
Cancelled
6 min early
Median arrival delay

Based on 292 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

DL 794 departing between 6–9 AM arrived on time 86% of the time, versus 36% between 9 AM–12 PM.

Saturdays have been rough.

DL 794 arrived on time 90% of the time on Mondays and just 71% on Saturdays. That gap is worth planning around.

Recent months have been rougher.

DL 794 arrived on time 72% of the time over the last three months in the data, compared with 87% in the three months before that.

The breakdown

On-time by weekday
  • Mon90%(39 flights)
  • Tue88%(41 flights)
  • Wed88%(40 flights)
  • Thu74%(42 flights)
  • Fri71%(42 flights)
  • Sat71%(42 flights)
  • Sun89%(44 flights)
On-time by departure window
  • 6–9 AM86%(265 flights)
  • 9 AM–12 PM36%(25 flights)
On-time trend by month
36%
May

Jun 90% → May 36% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202594%31
August 202594%31
September 202597%30
October 202597%31
November 202590%29
December 202574%23
March 202687%23
April 202692%12
May 202636%50
Departures on time
80%
Diverted
0%
Flights flown
290
Months covered
10

Based on 292 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.