Skip to content
WanderNerd
Check a flight

Route Reliability

Houston → Pittsburgh

IAH–PIT · 1,117 miles · George Bush Intercontinental Airport to Pittsburgh International Airport

88
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
4 min
Average arrival delay
0.6%
Cancelled
1,045
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 83% of the time across 1,045 flights. No comparison to make.

What the data says

Morning flights do better here.

IAH–PIT flights departing between 9 AM–12 PM arrived on time 92% of the time, versus 75% between 6–9 PM.

Sunday scaries are real for this one.

IAH–PIT flights arrived on time 86% of the time on Wednesdays. On Sundays: 78%.

Recent months have been rougher.

IAH–PIT flights arrived on time 83% of the time over the last three months in the data, compared with 91% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon82%(153 flights)
  • Tue85%(144 flights)
  • Wed86%(152 flights)
  • Thu84%(150 flights)
  • Fri83%(151 flights)
  • Sat84%(139 flights)
  • Sun78%(148 flights)
On-time by departure window
  • 6–9 AM91%(333 flights)
  • 9 AM–12 PM92%(109 flights)
  • 12–3 PM80%(247 flights)
  • 6–9 PM75%(348 flights)
On-time trend by month
84%
May

Jun 71% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%85
July 202574%87
August 202582%88
September 202583%87
October 202586%93
November 202585%88
December 202587%78
January 202691%84
February 202695%78
March 202675%92
April 202689%89
May 202684%88

Same trip, other airports

Keep nerding

Based on 1,045 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.