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Flight Reliability

UA 4366 · United Airlines

Houston → LRD (IAH–LRD)81% of its flights flew this route. The rest (IAD–ROA, IAH–MFE) are included in these numbers.

84
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
10 min
Average arrival delay
1.5%
Cancelled
11 min early
Median arrival delay

Based on 275 historical flights. Data through May 2026.

What the data says

12–3 PM has a slight edge.

Departures between 12–3 PM arrived on time 83% of the time, against 79% between 6–9 PM.

Mondays have been rough.

UA 4366 arrived on time 97% of the time on Thursdays and just 74% on Mondays. That gap is worth planning around.

A bit ahead of the United Airlines network.

UA 4366 arrived on time 82% of the time, versus 79% across the United Airlines network.

Recent months have been rougher.

UA 4366 arrived on time 80% of the time over the last three months in the data, compared with 92% in the three months before that.

The breakdown

On-time by weekday
  • Mon74%(38 flights)
  • Tue83%(41 flights)
  • Wed83%(40 flights)
  • Thu97%(31 flights)
  • Fri85%(40 flights)
  • Sat81%(43 flights)
  • Sun76%(38 flights)
On-time by departure window
  • 12–3 PM83%(237 flights)
  • 6–9 PM79%(34 flights)
On-time trend by month
80%
May

Jun 62% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%26
July 202570%27
August 202579%29
September 202590%30
October 202597%31
November 202590%29
December 202590%31
January 202679%28
February 202682%11
May 202680%25
Departures on time
82%
Diverted
0%
Flights flown
271
Months covered
11

Same route, other flights

Keep nerding

Based on 275 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.