Route · PDX → ORD · 2020–2025 BTS data
Portland to Chicago
The PDX–ORD corridor (Portland, OR → Chicago, IL) runs ahead of the national average, served by 15 carriers across roughly 1,739 miles.
Data updated 2026-06-13
- 84.8%
- On-time
- +5.8 pts
- vs US avg
- 81 min
- Delay when late
- 11,724
- Flights
Cancelled
1.1%
Best Month
Mar 2024 93%
Worst Month
Jul 2025 64%
Distance
1,739 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 164 | 35 | 1 | 1 | AS,AA,UA |
| Nov 2025 | 174 | 30 | 5 | 0 | UA,AA,AS |
| Oct 2025 | 264 | 58 | 1 | 0 | AA,AS,UA |
| Sep 2025 | 255 | 62 | 0 | 2 | UA,AA,AS |
| Aug 2025 | 294 | 68 | 2 | 6 | AA,UA,AS |
| Jul 2025 | 297 | 108 | 5 | 3 | AA,AS,UA |
| Jun 2025 | 289 | 79 | 2 | 1 | AA,AS,UA |
| May 2025 | 254 | 57 | 0 | 0 | AA,AS,UA |
| Apr 2025 | 203 | 36 | 0 | 1 | UA,AA,AS |
| Mar 2025 | 123 | 15 | 0 | 0 | AS,UA |
| Feb 2025 | 95 | 13 | 0 | 0 | AS,UA |
| Jan 2025 | 111 | 16 | 1 | 0 | AS,UA |
| Dec 2024 | 144 | 15 | 0 | 0 | AS,UA |
| Nov 2024 | 146 | 16 | 0 | 0 | UA,AS,AA |
| Oct 2024 | 196 | 17 | 0 | 0 | UA,AS,AA |
| Sep 2024 | 198 | 27 | 0 | 2 | NK,UA,AA,AS |
| Aug 2024 | 261 | 41 | 4 | 1 | AA,AS,NK,UA |
| Jul 2024 | 297 | 80 | 10 | 1 | AA,AS,NK,UA |
| Jun 2024 | 281 | 53 | 2 | 0 | AA,AS,NK,UA |
| May 2024 | 239 | 56 | 2 | 3 | AA,AS,NK,UA |
| Apr 2024 | 187 | 20 | 1 | 0 | AA,AS,UA |
| Mar 2024 | 118 | 8 | 0 | 0 | AS,UA |
| Feb 2024 | 85 | 6 | 0 | 0 | AS,UA |
| Jan 2024 | 107 | 14 | 18 | 0 | AS,UA |
Cancellation Rate
1.1%
54 of 4,782 flights
Diversion Rate
0.4%
21 of 4,782 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 →ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See PDX and ORD 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–ORD.
Routes with a similar on-time rate
What the Data Says About PDX to ORD
Bureau of Transportation Statistics records show Portland to Chicago (PDX to ORD) running a 84.8% on-time rate over 11,724 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 81.4 minutes. The 1,739-mile corridor is served by 15 carriers, and over the last 24 months 1.1% of 4,782 flights were cancelled, 0.4% diverted.
The monthly split is wide on this route: Mar 2024 posted the strongest performance at 93% on-time, while Jul 2025 came in at just 64% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from PDX to ORD? ▼
What is the cancellation rate for PDX to ORD? ▼
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Flight Guides
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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.