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Flight Reliability

UA 4822 · United Airlines

Birmingham → Houston (BHM–IAH)84% of its flights flew this route. The rest (IAH–LBB, IAD–ORF) are included in these numbers.

94
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
1 min early
Average arrival delay
0.3%
Cancelled
18 min early
Median arrival delay

Based on 311 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 88% of the time, against 84% between 3–6 PM.

Sunday scaries are real for this one.

UA 4822 arrived on time 98% of the time on Mondays. On Sundays: 83%.

A bit ahead of the BHM–IAH route.

UA 4822 arrived on time 87% of the time, versus 82% across the BHM–IAH route.

Better than the United Airlines network average.

UA 4822 arrived on time 87% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon98%(45 flights)
  • Tue88%(42 flights)
  • Wed85%(41 flights)
  • Thu89%(46 flights)
  • Fri85%(47 flights)
  • Sat83%(42 flights)
  • Sun83%(47 flights)
On-time by departure window
  • 9 AM–12 PM88%(259 flights)
  • 3–6 PM84%(51 flights)
On-time trend by month
71%
May

Jun 77% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202594%31
August 202586%28
September 202595%19
October 202592%25
December 202593%27
January 202684%31
February 202693%28
March 202697%30
April 202686%29
May 202671%31
Departures on time
86%
Diverted
0%
Flights flown
310
Months covered
12

Same route, other flights

Keep nerding

Based on 311 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.