Route · IAH → PDX · 2020–2025 BTS data
Houston to Portland
The IAH–PDX corridor (Houston, TX → Portland, OR) runs ahead of the national average, served by 3 carriers across roughly 1,825 miles.
Data updated 2026-06-13
- 81.3%
- On-time
- +2.3 pts
- vs US avg
- 72 min
- Delay when late
- 4,534
- Flights
Cancelled
1.0%
Best Month
Sep 2024 90%
Worst Month
May 2024 52%
Distance
1,825 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 105 | 18 | 0 | 0 | AS,UA |
| Nov 2025 | 90 | 18 | 0 | 0 | UA,AS |
| Oct 2025 | 118 | 28 | 1 | 1 | AS,UA |
| Sep 2025 | 96 | 15 | 0 | 0 | UA,AS |
| Aug 2025 | 111 | 15 | 1 | 0 | UA,AS |
| Jul 2025 | 123 | 22 | 3 | 0 | AS,UA |
| Jun 2025 | 120 | 39 | 2 | 1 | AS,UA |
| May 2025 | 87 | 15 | 0 | 0 | AS,UA |
| Apr 2025 | 60 | 12 | 0 | 0 | UA |
| Mar 2025 | 62 | 10 | 0 | 0 | UA |
| Feb 2025 | 56 | 10 | 0 | 0 | UA |
| Jan 2025 | 65 | 11 | 2 | 0 | UA |
| Dec 2024 | 71 | 16 | 1 | 0 | UA |
| Nov 2024 | 60 | 14 | 0 | 0 | UA |
| Oct 2024 | 88 | 12 | 0 | 0 | UA |
| Sep 2024 | 86 | 9 | 0 | 1 | UA |
| Aug 2024 | 91 | 16 | 0 | 0 | UA |
| Jul 2024 | 93 | 29 | 7 | 0 | UA |
| Jun 2024 | 90 | 28 | 0 | 0 | UA |
| May 2024 | 71 | 34 | 1 | 0 | UA |
| Apr 2024 | 60 | 11 | 0 | 0 | UA |
| Mar 2024 | 62 | 10 | 0 | 0 | UA |
| Feb 2024 | 58 | 10 | 0 | 0 | UA |
| Jan 2024 | 62 | 13 | 2 | 0 | UA |
Cancellation Rate
1.0%
20 of 1,985 flights
Diversion Rate
0.2%
3 of 1,985 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Origin airport →PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Destination airport →Compare the two airports
See IAH and PDX side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAH–PDX.
Routes with a similar on-time rate
What the Data Says About IAH to PDX
4,534 tracked flights put the IAH to PDX pairing (Houston to Portland) at a 81.3% on-time rate, squarely in line with the wider network. Delays that do occur run 72.2 minutes on average. Across the 1,825-mile route and its 3 carriers, the trailing 24 months show 1.0% cancelled and 0.2% diverted (1,985 flights sampled).
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 90% on-time, while May 2024 came in at just 52% - a 37-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.