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Flight Reliability

DL 1216 · Delta Air Lines

Houston → Los Angeles (IAH–LAX)

100
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
7 min early
Average arrival delay
0.5%
Cancelled
13 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Skip Saturday if you can.

DL 1216 arrived on time 98% of the time on Wednesdays. On Saturdays: 90%.

Better than the IAH–LAX route average.

DL 1216 arrived on time 94% of the time, versus 84% across the IAH–LAX route.

Better than the Delta Air Lines network average.

DL 1216 arrived on time 94% of the time, versus 81% across the Delta Air Lines network.

Ticking up lately.

DL 1216 arrived on time 99% of the time over the last three months in the data, compared with 95% in the three months before that.

The breakdown

On-time by weekday
  • Mon94%(52 flights)
  • Tue96%(52 flights)
  • Wed98%(52 flights)
  • Thu94%(52 flights)
  • Fri94%(51 flights)
  • Sat90%(52 flights)
  • Sun92%(52 flights)
On-time trend by month
97%
May

Jun 80% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202590%31
August 202597%30
September 202597%30
October 202597%31
November 202590%30
December 202590%31
January 202693%30
February 2026100%28
March 2026100%31
April 2026100%30
May 202697%31
Departures on time
94%
Diverted
0%
Flights flown
363
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.