Route · PHX → IAH · 2020–2025 BTS data
Phoenix to Houston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHX to IAH (Phoenix to Houston) ranks #638 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 85%
- On-time
- +6 pts
- vs US avg
- 84 min
- Delay when late
- 14,717
- Flights
- #638 of 4927
- Corpus placement
Cancelled
1.2%
Best Month
Feb 2024 94%
Worst Month
Jul 2024 66%
Distance
1,009 mi
Carriers
40
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 269 | 33 | 2 | 1 | F9,AA,MQ,UA,OO |
| Nov 2025 | 266 | 56 | 4 | 0 | UA,F9,AA |
| Oct 2025 | 254 | 54 | 0 | 1 | AA,UA,F9 |
| Sep 2025 | 191 | 27 | 1 | 1 | UA,F9,AA |
| Aug 2025 | 196 | 40 | 2 | 1 | AA,F9,MQ,UA |
| Jul 2025 | 215 | 54 | 4 | 3 | AA,UA,F9,MQ |
| Jun 2025 | 218 | 60 | 5 | 4 | AA,OO,UA,F9,MQ |
| May 2025 | 287 | 42 | 2 | 2 | AA,OO,UA,F9,MQ |
| Apr 2025 | 338 | 40 | 2 | 3 | F9,MQ,OO,UA |
| Mar 2025 | 344 | 46 | 1 | 0 | OO,UA,F9,MQ |
| Feb 2025 | 255 | 35 | 1 | 0 | AA,OO,UA,F9,MQ |
| Jan 2025 | 228 | 27 | 9 | 1 | AA,OO,UA,F9,MQ |
| Dec 2024 | 248 | 32 | 1 | 1 | AA,F9,MQ,OO,UA |
| Nov 2024 | 229 | 23 | 1 | 0 | OO,UA,MQ,F9,AA |
| Oct 2024 | 225 | 32 | 0 | 0 | UA,OO,F9,AA |
| Sep 2024 | 194 | 22 | 1 | 0 | OO,UA,AA,F9 |
| Aug 2024 | 192 | 40 | 3 | 1 | AA,F9,MQ,OO,UA |
| Jul 2024 | 206 | 70 | 16 | 2 | AA,F9,MQ,OO,UA |
| Jun 2024 | 204 | 59 | 0 | 1 | AA,F9,OO,UA |
| May 2024 | 215 | 46 | 4 | 1 | AA,F9,OO,UA |
| Apr 2024 | 224 | 30 | 1 | 2 | AA,F9,OO,UA |
| Mar 2024 | 235 | 27 | 1 | 1 | AA,F9,OO,UA |
| Feb 2024 | 197 | 12 | 0 | 0 | AA,F9,OO,UA |
| Jan 2024 | 210 | 31 | 6 | 1 | F9,MQ,OO,UA |
PHX–IAH seasonal on-time pattern
Best: March (89.2%) · weakest: July (74.0%)
Strongest calendar month
March
89.2% on-time · ~258 flights/mo
Busiest calendar month
March
~258 flights/mo avg
Weakest calendar month
July
74.0% on-time · ~188 flights/mo
Cancellation Rate
1.2%
67 of 5,640 flights
Diversion Rate
0.5%
27 of 5,640 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHX - Phoenix
Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.
PHX on-time profileIAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileCompare the two airports
See PHX and IAH side by side on delays, cancellations, and reliability.
Compare PHX vs IAHOrigin-hub reliability standing
Among PHX's stronger departures
PHX → IAH posts a 85% on-time rate, landing in the ≥85% band with 25 of 97 BTS-tracked routes leaving Phoenix. The same hub also shows 71 mid-band and 1 challenged departures · fleet-wide on-time rank #1227 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to PHX–IAH.
Routes with a similar on-time rate
What the Data Says About PHX to IAH
Phoenix to Houston (PHX to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85% on-time rate across 14,717 flights, with delays that do happen averaging 84.0 minutes. The corridor runs roughly 1,009 miles and is served by 40 carriers. Over the most recent 24 months, 67 of 5,640 flights were cancelled (1.2%) and 27 diverted (0.5%).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while Jul 2024 came in at just 66% - a 28-point swing worth factoring into travel timing.
On the multi-year calendar, PHX–IAH peaks in March at 89.2% on-time ; the softest month is July at 74.0%, a 15.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does PHX to IAH rank among US routes by traffic? ▼
How often are flights delayed from PHX to IAH? ▼
What is the cancellation rate for PHX to IAH? ▼
How far is the flight from PHX to IAH? ▼
When is the best time to fly from PHX to IAH? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using PHX–IAH data
PHX–IAH runs 6 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare PHX and IAH airport profiles: delay causes and top routes differ even on the same corridor. PHX airport
- If your dates flex, March (89.2% on-time) beats July (74.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 85% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.