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Flight Reliability

UA 4861 · United Airlines

Houston → Little Rock (IAH–LIT)91% of its flights flew this route. The rest (SYR–IAD, XNA–IAH) are included in these numbers.

81
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
1 min
Average arrival delay
3.0%
Cancelled
9 min early
Median arrival delay

Based on 234 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 80% between 6–9 AM.

Mondays have been rough.

UA 4861 arrived on time 96% of the time on Tuesdays and just 79% on Mondays. That gap is worth planning around.

A bit ahead of the IAH–LIT route.

UA 4861 arrived on time 85% of the time, versus 81% across the IAH–LIT route.

A bit ahead of the United Airlines network.

UA 4861 arrived on time 85% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon79%(29 flights)
  • Tue96%(25 flights)
  • Wed82%(33 flights)
  • Thu88%(33 flights)
  • Fri80%(35 flights)
  • Sat86%(29 flights)
  • Sun84%(43 flights)
On-time by departure window
  • 6–9 AM80%(10 flights)
  • 9 AM–12 PM—(4 flights)
  • 12–3 PM86%(207 flights)
  • 3–6 PM—(4 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
84%
May

Aug 79% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202579%14
September 202587%30
October 202579%28
November 202584%19
December 202580%30
January 202693%29
February 202692%24
March 202689%18
May 202684%25
Departures on time
86%
Diverted
0%
Flights flown
227
Months covered
12

Same route, other flights

Keep nerding

Based on 234 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.