Route · MDW → PDX · 2020–2025 BTS data
Chicago to Portland
The MDW–PDX corridor (Chicago, IL → Portland, OR) runs behind the national average, served by 1 carrier across roughly 1,751 miles.
Data updated 2026-06-13
- 72.9%
- On-time
- -6.1 pts
- vs US avg
- 56 min
- Delay when late
- 2,785
- Flights
Cancelled
0.2%
Best Month
Oct 2024 87%
Worst Month
Jun 2024 56%
Distance
1,751 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 22 | 0 | 0 | WN |
| Nov 2025 | 30 | 9 | 1 | 0 | WN |
| Oct 2025 | 54 | 12 | 0 | 0 | WN |
| Sep 2025 | 82 | 14 | 0 | 1 | WN |
| Aug 2025 | 84 | 30 | 0 | 0 | WN |
| Jul 2025 | 88 | 34 | 0 | 0 | WN |
| Jun 2025 | 78 | 30 | 0 | 0 | WN |
| May 2025 | 31 | 6 | 0 | 0 | WN |
| Apr 2025 | 30 | 8 | 0 | 0 | WN |
| Mar 2025 | 31 | 7 | 0 | 0 | WN |
| Jan 2025 | 31 | 5 | 0 | 0 | WN |
| Dec 2024 | 31 | 6 | 0 | 0 | WN |
| Nov 2024 | 31 | 6 | 0 | 0 | WN |
| Oct 2024 | 55 | 7 | 0 | 0 | WN |
| Sep 2024 | 81 | 17 | 0 | 0 | WN |
| Aug 2024 | 85 | 34 | 0 | 1 | WN |
| Jul 2024 | 88 | 27 | 0 | 1 | WN |
| Jun 2024 | 80 | 35 | 0 | 0 | WN |
| May 2024 | 31 | 17 | 0 | 2 | WN |
| Apr 2024 | 30 | 7 | 0 | 1 | WN |
| Mar 2024 | 31 | 9 | 0 | 0 | WN |
| Jan 2024 | 31 | 7 | 2 | 0 | WN |
| Dec 2023 | 31 | 3 | 0 | 0 | WN |
| Nov 2023 | 32 | 7 | 0 | 0 | WN |
Cancellation Rate
0.2%
3 of 1,207 flights
Diversion Rate
0.5%
6 of 1,207 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Destination airport →Compare the two airports
See MDW 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 MDW–PDX.
Routes with a similar on-time rate
What the Data Says About MDW to PDX
On-time performance on the MDW to PDX pairing (Chicago to Portland) trails a chunk of the network: 72.9% of 2,785 tracked flights arrived on schedule, with a 56.2-minute average delay on the ones that ran late. The route spans about 1,751 miles across 1 carrier. Cancellations over the trailing 24 months hit 0.2% (3 of 1,207 flights), with 0.5% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 87% on-time, while Jun 2024 came in at just 56% - a 31-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from MDW to PDX? ▼
What is the cancellation rate for MDW to PDX? ▼
How far is the flight from MDW to PDX? ▼
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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.