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Flight Reliability

UA 2377 · United Airlines

Los Angeles → Houston (LAX–IAH)92% of its flights flew this route. The rest (DEN–PIT, IAH–ORD) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
2 min
Average arrival delay
0.6%
Cancelled
7 min early
Median arrival delay

Based on 358 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 86% of the time, against 80% between 9 AM–12 PM.

Friday is doing you no favors.

UA 2377 arrived on time 88% of the time on Thursdays. On Fridays: 80%.

A bit ahead of the United Airlines network.

UA 2377 arrived on time 85% of the time, versus 79% across the United Airlines network.

Recent months have been rougher.

UA 2377 arrived on time 82% 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
  • Mon84%(51 flights)
  • Tue87%(52 flights)
  • Wed87%(52 flights)
  • Thu88%(51 flights)
  • Fri80%(51 flights)
  • Sat84%(44 flights)
  • Sun85%(54 flights)
On-time by departure window
  • 9 AM–12 PM80%(25 flights)
  • 3–6 PM86%(328 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
81%
May

Jun 76% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202573%26
August 202586%28
September 202587%30
October 202597%31
November 202577%31
December 202584%31
January 2026100%30
February 202693%28
March 202687%30
April 202680%30
May 202681%31
Departures on time
86%
Diverted
0.3%
Flights flown
355
Months covered
12

Same route, other flights

Keep nerding

Based on 358 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.