Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 2051 · Delta Air Lines

Atlanta → Houston (ATL–HOU)

76
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
10 min
Average arrival delay
1.4%
Cancelled
3 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 2051 departing between 9 PM–12 AM arrived on time 75% of the time, versus 68% between 6–9 PM.

Thursdays have been rough.

DL 2051 arrived on time 81% of the time on Wednesdays and just 65% on Thursdays. That gap is worth planning around.

A bit behind the ATL–HOU route.

DL 2051 arrived on time 74% of the time, versus 80% across the ATL–HOU route.

A bit behind the Delta Air Lines network.

DL 2051 arrived on time 74% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon78%(51 flights)
  • Tue71%(52 flights)
  • Wed81%(52 flights)
  • Thu65%(52 flights)
  • Fri71%(49 flights)
  • Sat78%(50 flights)
  • Sun76%(53 flights)
On-time by departure window
  • 6–9 PM68%(28 flights)
  • 9 PM–12 AM75%(331 flights)
On-time trend by month
74%
May

Jun 57% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%28
July 202568%31
August 202577%31
September 202587%30
October 202581%31
November 202567%30
December 202561%31
January 202680%30
February 202685%27
March 202679%29
April 202677%30
May 202674%31
Departures on time
72%
Diverted
0.3%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.