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Flight Reliability

DL 493 · Delta Air Lines

Atlanta → Denver (ATL–DEN)99% of its flights flew this route. The rest (BOS–ATL) are included in these numbers.

79
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
10 min
Average arrival delay
0.6%
Cancelled
1 min early
Median arrival delay

Based on 315 historical flights. Data through May 2026.

What the data says

Saturdays have been rough.

DL 493 arrived on time 81% of the time on Wednesdays and just 65% on Saturdays. That gap is worth planning around.

A bit behind the ATL–DEN route.

DL 493 arrived on time 74% of the time, versus 77% across the ATL–DEN route.

Lagging the Delta Air Lines network.

DL 493 arrived on time 74% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 493 arrived on time 89% of the time over the last three months in the data, compared with 75% in the three months before that.

The breakdown

On-time by weekday
  • Mon74%(46 flights)
  • Tue72%(50 flights)
  • Wed81%(47 flights)
  • Thu71%(45 flights)
  • Fri80%(45 flights)
  • Sat65%(34 flights)
  • Sun72%(46 flights)
On-time by departure window
  • 9 AM–12 PM—(3 flights)
  • 6–9 PM76%(136 flights)
  • 9 PM–12 AM73%(174 flights)
On-time trend by month
84%
May

Jun 41% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%29
July 202555%31
August 202574%31
September 202580%30
October 202574%31
November 202586%29
December 202565%31
January 202677%17
February 202683%12
March 202695%21
April 202689%26
May 202684%25
Departures on time
74%
Diverted
0%
Flights flown
313
Months covered
12

Same route, other flights

Keep nerding

Based on 315 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.