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Flight Reliability

DL 818 · Delta Air Lines

Atlanta → Dallas–Fort Worth (ATL–DFW)

69
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
6 min
Average arrival delay
3.8%
Cancelled
6 min early
Median arrival delay

Based on 342 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 818 arrived on time 86% of the time on Tuesdays and just 66% on Sundays. That gap is worth planning around.

A bit behind the Delta Air Lines network.

DL 818 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 818 was cancelled 3.8% of the time. Typical for U.S. flights is around 1–2%.

Slipping a little lately.

DL 818 arrived on time 80% of the time over the last three months in the data, compared with 85% in the three months before that.

The breakdown

On-time by weekday
  • Mon71%(51 flights)
  • Tue86%(42 flights)
  • Wed86%(42 flights)
  • Thu75%(52 flights)
  • Fri69%(48 flights)
  • Sat82%(44 flights)
  • Sun66%(50 flights)
On-time by departure window
  • 6–9 PM—(2 flights)
  • 9 PM–12 AM76%(327 flights)
On-time trend by month
74%
May

Jun 33% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%21
July 202550%22
August 202578%23
September 202583%29
October 202577%31
November 202576%29
December 202579%29
January 202686%28
February 202689%28
March 202679%28
April 202687%30
May 202674%31
Departures on time
73%
Diverted
0%
Flights flown
329
Months covered
12

Same route, other flights

Keep nerding

Based on 342 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.