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Flight Reliability

UA 4934 · United Airlines

LCH → Houston (LCH–IAH)

85
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
6 min
Average arrival delay
2.0%
Cancelled
15 min early
Median arrival delay

Based on 250 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 86% of the time, against 79% between 3–6 PM.

Mondays have been rough.

UA 4934 arrived on time 91% of the time on Tuesdays and just 75% on Mondays. That gap is worth planning around.

A bit ahead of the United Airlines network.

UA 4934 arrived on time 85% of the time, versus 79% across the United Airlines network.

Recent months have been rougher.

UA 4934 arrived on time 82% of the time over the last three months in the data, compared with 96% in the three months before that.

The breakdown

On-time by weekday
  • Mon75%(36 flights)
  • Tue91%(35 flights)
  • Wed82%(34 flights)
  • Thu86%(36 flights)
  • Fri83%(36 flights)
  • Sat90%(30 flights)
  • Sun84%(38 flights)
On-time by departure window
  • 12–3 PM86%(202 flights)
  • 3–6 PM79%(43 flights)
On-time trend by month
83%
May

Jun 65% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%26
July 202569%26
August 202593%28
September 202593%30
October 202597%31
November 202597%30
December 202580%15
March 202683%23
May 202683%30
Departures on time
85%
Diverted
0%
Flights flown
245
Months covered
11

Same route, other flights

Keep nerding

Based on 250 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.