Route · PDX → IAD · 2020–2025 BTS data
Portland to Washington
The PDX–IAD corridor (Portland, OR → Washington, DC) runs ahead of the national average, served by 1 carrier across roughly 2,327 miles.
Data updated 2026-06-13
- 88.3%
- On-time
- +9.3 pts
- vs US avg
- 87 min
- Delay when late
- 1,216
- Flights
Cancelled
1.3%
Best Month
N/A
Worst Month
N/A
Distance
2,327 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Nov 2025 | 30 | 0 | 0 | 0 | UA |
| Oct 2025 | 31 | 0 | 0 | 0 | UA |
| Sep 2025 | 30 | 1 | 0 | 0 | UA |
| Aug 2025 | 31 | 6 | 0 | 0 | UA |
| Jul 2025 | 31 | 15 | 1 | 0 | UA |
| Jun 2025 | 31 | 3 | 0 | 1 | UA |
| May 2025 | 31 | 4 | 0 | 0 | UA |
| Apr 2025 | 30 | 4 | 0 | 0 | UA |
| Nov 2024 | 30 | 1 | 0 | 0 | UA |
| Oct 2024 | 31 | 1 | 0 | 0 | UA |
| Sep 2024 | 30 | 3 | 0 | 0 | UA |
| Aug 2024 | 30 | 3 | 0 | 0 | UA |
| Jul 2024 | 31 | 2 | 1 | 0 | UA |
| Jun 2024 | 31 | 2 | 0 | 0 | UA |
| May 2024 | 31 | 7 | 0 | 0 | UA |
| Apr 2024 | 30 | 2 | 0 | 0 | UA |
| Oct 2023 | 30 | 1 | 0 | 0 | UA |
| Sep 2023 | 30 | 5 | 0 | 0 | UA |
| Aug 2023 | 31 | 4 | 0 | 0 | UA |
| Jul 2023 | 31 | 11 | 2 | 0 | UA |
| Jun 2023 | 40 | 7 | 3 | 0 | UA |
| May 2023 | 31 | 3 | 0 | 0 | UA |
| Apr 2023 | 30 | 0 | 1 | 0 | UA |
| Dec 2022 | 32 | 5 | 2 | 0 | UA |
Cancellation Rate
1.3%
10 of 744 flights
Diversion Rate
0.1%
1 of 744 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 →IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See PDX and IAD 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–IAD.
Routes with a similar on-time rate
What the Data Says About PDX to IAD
Portland to Washington (PDX to IAD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.3% on-time rate across 1,216 flights, with delays that do happen averaging 86.6 minutes. The corridor runs roughly 2,327 miles and is served by 1 carrier. Over the most recent 24 months, 10 of 744 flights were cancelled (1.3%) and 1 diverted (0.1%).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
Frequently Asked Questions
How often are flights delayed from PDX to IAD? ▼
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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.