Route · PDX → IAH · 2020–2025 BTS data
Portland to Houston
The PDX–IAH corridor (Portland, OR → Houston, TX) runs ahead of the national average, served by 3 carriers across roughly 1,825 miles.
Data updated 2026-06-13
- 87.1%
- On-time
- +8.1 pts
- vs US avg
- 82 min
- Delay when late
- 4,534
- Flights
Cancelled
1.5%
Best Month
Sep 2024 95%
Worst Month
May 2024 76%
Distance
1,825 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 105 | 12 | 0 | 0 | AS,UA |
| Nov 2025 | 90 | 17 | 0 | 1 | UA,AS |
| Oct 2025 | 118 | 22 | 1 | 0 | AS,UA |
| Sep 2025 | 96 | 7 | 0 | 0 | UA,AS |
| Aug 2025 | 111 | 22 | 1 | 0 | UA,AS |
| Jul 2025 | 123 | 27 | 3 | 1 | AS,UA |
| Jun 2025 | 120 | 28 | 3 | 1 | AS,UA |
| May 2025 | 87 | 14 | 0 | 0 | AS,UA |
| Apr 2025 | 60 | 5 | 0 | 1 | UA |
| Mar 2025 | 62 | 3 | 0 | 0 | UA |
| Feb 2025 | 56 | 3 | 0 | 0 | UA |
| Jan 2025 | 66 | 5 | 3 | 0 | UA |
| Dec 2024 | 71 | 12 | 1 | 0 | UA |
| Nov 2024 | 60 | 3 | 0 | 0 | UA |
| Oct 2024 | 88 | 6 | 0 | 0 | UA |
| Sep 2024 | 86 | 4 | 1 | 0 | UA |
| Aug 2024 | 91 | 9 | 0 | 1 | UA |
| Jul 2024 | 93 | 19 | 6 | 1 | UA |
| Jun 2024 | 90 | 14 | 1 | 1 | UA |
| May 2024 | 71 | 17 | 1 | 2 | UA |
| Apr 2024 | 60 | 4 | 0 | 0 | UA |
| Mar 2024 | 62 | 10 | 0 | 0 | UA |
| Feb 2024 | 58 | 6 | 0 | 0 | UA |
| Jan 2024 | 61 | 13 | 9 | 0 | UA |
Cancellation Rate
1.5%
30 of 1,985 flights
Diversion Rate
0.5%
9 of 1,985 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Origin airport →IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Destination airport →Compare the two airports
See PDX and IAH side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PDX–IAH.
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What the Data Says About PDX to IAH
Portland to Houston (PDX to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87.1% on-time rate across 4,534 flights, with delays that do happen averaging 82.2 minutes. The corridor runs roughly 1,825 miles and is served by 3 carriers. Over the most recent 24 months, 30 of 1,985 flights were cancelled (1.5%) and 9 diverted (0.5%).
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 95% on-time, while May 2024 came in at just 76% - a 19-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.