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Flight Reliability

UA 4905 · United Airlines

Huntsville → Houston (HSV–IAH)

70
Usually Fine
WanderNerd Reliability Score
71%
Arrive within 15 minutes
15 min
Average arrival delay
1.3%
Cancelled
7 min early
Median arrival delay

Based on 303 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

UA 4905 departing between 12–3 PM arrived on time 74% of the time, versus 67% between 3–6 PM.

Tuesdays have been rough.

UA 4905 arrived on time 78% of the time on Fridays and just 60% on Tuesdays. That gap is worth planning around.

Lagging the HSV–IAH route.

UA 4905 arrived on time 71% of the time, versus 79% across the HSV–IAH route.

Lagging the United Airlines network.

UA 4905 arrived on time 71% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon63%(49 flights)
  • Tue60%(30 flights)
  • Wed73%(37 flights)
  • Thu74%(49 flights)
  • Fri78%(51 flights)
  • Sat69%(32 flights)
  • Sun74%(50 flights)
On-time by departure window
  • 12–3 PM74%(169 flights)
  • 3–6 PM67%(129 flights)
On-time trend by month
68%
May

Jun 38% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202538%29
July 202566%29
August 202559%27
September 202574%27
October 202571%31
November 202589%27
December 202575%28
January 202683%18
February 202681%16
March 202679%24
April 202682%17
May 202668%25
Departures on time
78%
Diverted
0.3%
Flights flown
298
Months covered
12

Same route, other flights

Keep nerding

Based on 303 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.