BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
IAH→PIT

Houston, TX (IAH) to Pittsburgh, PA (PIT) flight delay odds

80.5% of 738 official scheduled IAH-to-PIT flights arrived on time; 11.5% arrived at least 30 minutes late and 0.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
80.5%arrived on time
11.5%30+ min late
0.1%cancelled
738scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.4%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+4.9 mincompleted flights

Which departure time was most reliable for IAH to PIT?

Among qualifying IAH-to-PIT departure window results, Late morning had the highest on-time rate: 91.4% of 105 flights. Evening was lowest at 73.9% across 310 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning10089.0%5.0%0.0%
Late morning10591.4%5.7%1.0%
Afternoon22380.7%12.1%0.0%
Evening31073.9%15.2%0.0%

Which weekday was most reliable for IAH to PIT?

Among qualifying IAH-to-PIT weekday results, Tuesday had the highest on-time rate: 86.6% of 97 flights. Sunday was lowest at 72.8% across 103 flights.

DayFlightsOn time30+ minCancelled
Monday11782.9%12.8%0.0%
Tuesday9786.6%5.2%0.0%
Wednesday11083.6%11.8%0.0%
Thursday11575.7%13.0%0.0%
Friday11480.7%11.4%0.0%
Saturday8281.7%9.8%0.0%
Sunday10372.8%15.5%1.0%

Which airline was most reliable for IAH to PIT?

Only United Airlines met the IAH-to-PIT airline threshold: 80.7% of 731 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines73180.7%11.2%0.1%
SkyWest Airlines757.1%42.9%0.0%

Which month was most reliable for IAH to PIT?

Among qualifying IAH-to-PIT month results, February 2026 had the highest on-time rate: 95.2% of 42 flights. July 2025 was lowest at 56.2% across 48 flights.

MonthFlightsOn time30+ minCancelled
July 20254856.2%29.2%0.0%
August 20254868.8%18.8%0.0%
September 20254977.6%10.2%0.0%
October 20256684.8%7.6%0.0%
November 20257783.1%9.1%0.0%
December 20257588.0%5.3%0.0%
January 20263287.5%9.4%3.1%
February 20264295.2%4.8%0.0%
March 20266271.0%19.4%0.0%
April 20268887.5%6.8%0.0%
May 20266981.2%13.0%0.0%
June 20268279.3%11.0%0.0%

What drove IAH to PIT delay minutes?

Late aircraft was the largest recorded IAH-to-PIT delay category, accounting for 51.5% of 8,645 BTS-attributed delay minutes during July 2025–June 2026.

Airline31.4%
Late aircraft51.5%
National airspace11.6%
Weather5.5%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.