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Flight Reliability

DL 659 · Delta Air Lines

Atlanta → Las Vegas (ATL–LAS)

81
Pretty Reliable
WanderNerd Reliability Score
77%
Arrive within 15 minutes
10 min
Average arrival delay
0.3%
Cancelled
2 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

DL 659 departing between 12–3 PM arrived on time 83% of the time, versus 74% between 6–9 PM.

Skip Saturday if you can.

DL 659 arrived on time 85% of the time on Fridays. On Saturdays: 71%.

A bit behind the Delta Air Lines network.

DL 659 arrived on time 77% of the time, versus 81% across the Delta Air Lines network.

It basically never cancels.

Out of 339 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon77%(51 flights)
  • Tue81%(41 flights)
  • Wed72%(43 flights)
  • Thu71%(52 flights)
  • Fri85%(52 flights)
  • Sat71%(44 flights)
  • Sun79%(53 flights)
On-time by departure window
  • 12–3 PM83%(35 flights)
  • 3–6 PM76%(267 flights)
  • 6–9 PM74%(34 flights)
On-time trend by month
86%
May

Jun 59% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202558%31
August 202581%31
September 202590%30
October 202583%30
November 202580%30
December 202583%30
January 202681%31
February 202668%28
March 202676%21
April 202671%17
May 202686%28
Departures on time
75%
Diverted
0.6%
Flights flown
336
Months covered
12

Same route, other flights

Keep nerding

Based on 339 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.