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

Phoenix, AZ (PHX) to Houston, TX (IAH) flight delay odds

80.2% of 2,927 official scheduled PHX-to-IAH flights arrived on time; 11.8% arrived at least 30 minutes late and 0.9% 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
80.2%arrived on time
11.8%30+ min late
0.9%cancelled
2,927scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late3.0%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+8.1 mincompleted flights

Which departure time was most reliable for PHX to IAH?

Among qualifying PHX-to-IAH departure window results, Early morning had the highest on-time rate: 86.1% of 830 flights. Evening was lowest at 71.7% across 506 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning83086.1%7.0%0.7%
Late morning65485.0%6.9%0.8%
Afternoon93676.1%15.4%0.9%
Evening50671.7%19.4%1.6%

Which weekday was most reliable for PHX to IAH?

Among qualifying PHX-to-IAH weekday results, Wednesday had the highest on-time rate: 84.1% of 371 flights. Sunday was lowest at 74.8% across 456 flights.

DayFlightsOn time30+ minCancelled
Monday45878.4%13.3%1.3%
Tuesday35883.8%7.8%0.3%
Wednesday37184.1%8.1%1.6%
Thursday45183.4%11.5%0.7%
Friday44275.3%14.0%1.1%
Saturday39183.1%10.7%0.5%
Sunday45674.8%15.6%0.9%

Which airline was most reliable for PHX to IAH?

Among qualifying PHX-to-IAH airline results, United Airlines had the highest on-time rate: 83.7% of 1,780 flights. SkyWest Airlines was lowest at 70.6% across 180 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,78083.7%9.7%0.6%
American Airlines62274.1%16.1%1.4%
Frontier Airlines27777.6%13.0%1.1%
SkyWest Airlines18070.6%19.4%2.8%
Envoy Air6879.4%4.4%0.0%

Which month was most reliable for PHX to IAH?

Among qualifying PHX-to-IAH month results, February 2026 had the highest on-time rate: 89.8% of 244 flights. July 2025 was lowest at 71.6% across 215 flights.

MonthFlightsOn time30+ minCancelled
July 202521571.6%16.7%1.9%
August 202519678.1%15.3%1.0%
September 202519184.8%10.5%0.5%
October 202525478.3%14.2%0.0%
November 202526677.4%13.5%1.5%
December 202526986.6%5.2%0.7%
January 202625187.3%4.8%1.6%
February 202624489.8%6.1%0.4%
March 202630172.1%17.3%2.0%
April 202624982.3%10.0%0.8%
May 202625780.2%12.5%0.0%
June 202623473.9%16.2%0.4%

What drove PHX to IAH delay minutes?

Late aircraft was the largest recorded PHX-to-IAH delay category, accounting for 38.7% of 40,806 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.1%
Late aircraft38.7%
National airspace25.1%
Weather2.1%
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.