IAH → PHX: 78% on-time

Historical on-time performance

Houston to Phoenix

1,009 miData through May 2026Source: US DOT · BTS

Flights on IAH–PHX arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min

p90 delay45 min1 in 10 flights is worse (tail risk)

Cancelled0.9%of scheduled flights

based on 2,554 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

Airline	On-time	Median	p90	Cancel	Flights
American Airlines	81%	on time	35 min	1.5%	548
United Airlines	79%	on time	45 min	0.5%	1,791
Frontier Airlines⚠ low data	68%	on time	65 min	0.0%	63
Envoy Air⚠ low data	65%	on time	100 min	5.0%	60
SkyWest Airlines⚠ low data	61%	on time	105 min	4.3%	92

Why flights run late

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Most cancellations here are attributed to Weather. Shares are among 24 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

By season

When to fly

All airlines · rolling 36 months (2023-06 .. 2026-05).

Mornings are the most reliable time of day to fly this route — 86% on time.

On-time rates are fairly even by day on this route — ranging from 75% to 82% on time.

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