Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 1647 · United Airlines

Houston → New Orleans (IAH–MSY)87% of its flights flew this route. The rest (CVG–IAH, SEA–IAH) are included in these numbers.

86
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
5 min
Average arrival delay
0.5%
Cancelled
9 min early
Median arrival delay

Based on 379 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

UA 1647 departing between 9 AM–12 PM arrived on time 91% of the time, versus 79% between 3–6 PM.

Sunday scaries are real for this one.

UA 1647 arrived on time 90% of the time on Saturdays and just 71% on Sundays. That gap is worth planning around.

A bit behind the IAH–MSY route.

UA 1647 arrived on time 80% of the time, versus 83% across the IAH–MSY route.

Recent months have been rougher.

UA 1647 arrived on time 79% of the time over the last three months in the data, compared with 86% in the three months before that.

The breakdown

On-time by weekday
  • Mon80%(55 flights)
  • Tue80%(56 flights)
  • Wed83%(54 flights)
  • Thu80%(55 flights)
  • Fri74%(54 flights)
  • Sat90%(48 flights)
  • Sun71%(55 flights)
On-time by departure window
  • 9 AM–12 PM91%(22 flights)
  • 12–3 PM79%(289 flights)
  • 3–6 PM79%(66 flights)
On-time trend by month
64%
May

Jun 71% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%52
July 202559%29
August 202581%31
September 202590%30
October 202584%31
November 202580%30
December 202583%29
January 202694%31
February 202682%28
March 202679%28
April 202693%30
May 202664%28
Departures on time
78%
Diverted
0%
Flights flown
377
Months covered
12

Same route, other flights

Keep nerding

Based on 379 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.