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Flight Reliability

DL 2109 · Delta Air Lines

New York → Houston (LGA–IAH)97% of its flights flew this route. The rest (MSP–RSW, RSW–MSP) are included in these numbers.

43
Bring Snacks
WanderNerd Reliability Score
62%
Arrive within 15 minutes
31 min
Average arrival delay
4.0%
Cancelled
2 min early
Median arrival delay

Based on 329 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 2109 arrived on time 67% of the time on Fridays. On Sundays: 56%.

Well behind the LGA–IAH route.

DL 2109 arrived on time 62% of the time, versus 77% across the LGA–IAH route.

Well behind the Delta Air Lines network.

DL 2109 arrived on time 62% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 2109 was cancelled 4.0% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon61%(51 flights)
  • Tue65%(51 flights)
  • Wed57%(47 flights)
  • Thu62%(47 flights)
  • Fri67%(49 flights)
  • Sat67%(21 flights)
  • Sun56%(50 flights)
On-time by departure window
  • 6–9 AM—(6 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM—(7 flights)
  • 6–9 PM61%(298 flights)
On-time trend by month
68%
May

Jun 48% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%25
July 202535%26
August 202581%26
September 202581%26
October 202548%25
November 202552%25
December 202532%22
January 202676%25
February 202691%23
March 202660%30
April 202666%32
May 202668%31
Departures on time
64%
Diverted
0%
Flights flown
316
Months covered
12

Same route, other flights

Keep nerding

Based on 329 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.