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Flight Reliability

DL 569 · Delta Air Lines

Seattle → Atlanta (SEA–ATL)

99
Nerd Approved
WanderNerd Reliability Score
95%
Arrive within 15 minutes
11 min early
Average arrival delay
0.8%
Cancelled
16 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Skip Saturday if you can.

DL 569 arrived on time 100% of the time on Wednesdays. On Saturdays: 92%.

Better than the SEA–ATL route average.

DL 569 arrived on time 95% of the time, versus 82% across the SEA–ATL route.

Better than the Delta Air Lines network average.

DL 569 arrived on time 95% of the time, versus 81% across the Delta Air Lines network.

Ticking up lately.

DL 569 arrived on time 94% of the time over the last three months in the data, compared with 91% in the three months before that.

The breakdown

On-time by weekday
  • Mon96%(51 flights)
  • Tue96%(52 flights)
  • Wed100%(52 flights)
  • Thu94%(52 flights)
  • Fri96%(50 flights)
  • Sat92%(51 flights)
  • Sun92%(52 flights)
On-time trend by month
100%
May

Jun 100% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%28
July 202597%31
August 202597%30
September 202597%30
October 202597%31
November 2025100%30
December 202587%31
January 202697%30
February 202689%28
March 202690%30
April 202693%30
May 2026100%31
Departures on time
93%
Diverted
0.3%
Flights flown
360
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.