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

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

83.6% of 738 official scheduled PIT-to-IAH flights arrived on time; 10.4% 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
83.6%arrived on time
10.4%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 late5.8%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-1.3 mincompleted flights

Which departure time was most reliable for PIT to IAH?

Among qualifying PIT-to-IAH departure window results, Early morning had the highest on-time rate: 92.8% of 321 flights. Evening was lowest at 58.9% across 95 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning32192.8%3.4%0.0%
Afternoon32281.7%11.8%0.3%
Evening9558.9%29.5%0.0%

Which weekday was most reliable for PIT to IAH?

Among qualifying PIT-to-IAH weekday results, Tuesday had the highest on-time rate: 86.7% of 98 flights. Sunday was lowest at 77.1% across 96 flights.

DayFlightsOn time30+ minCancelled
Monday11785.5%9.4%0.0%
Tuesday9886.7%8.2%0.0%
Wednesday10983.5%11.9%0.0%
Thursday11586.1%7.0%0.0%
Friday11479.8%14.9%0.0%
Saturday8986.5%9.0%0.0%
Sunday9677.1%12.5%1.0%

Which airline was most reliable for PIT to IAH?

Only United Airlines met the PIT-to-IAH airline threshold: 83.4% of 731 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines73183.4%10.5%0.1%
SkyWest Airlines7100.0%0.0%0.0%

Which month was most reliable for PIT to IAH?

Among qualifying PIT-to-IAH month results, September 2025 had the highest on-time rate: 91.8% of 49 flights. June 2026 was lowest at 74.4% across 82 flights.

MonthFlightsOn time30+ minCancelled
July 20254877.1%12.5%0.0%
August 20254879.2%12.5%0.0%
September 20254991.8%6.1%0.0%
October 20256684.8%9.1%0.0%
November 20257787.0%9.1%0.0%
December 20257581.3%9.3%0.0%
January 20263384.8%12.1%3.0%
February 20264190.2%9.8%0.0%
March 20266287.1%9.7%0.0%
April 20268888.6%5.7%0.0%
May 20266979.7%10.1%0.0%
June 20268274.4%19.5%0.0%

What drove PIT to IAH delay minutes?

National airspace was the largest recorded PIT-to-IAH delay category, accounting for 47.6% of 7,801 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.1%
Late aircraft22.8%
National airspace47.6%
Weather3.5%
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.