Route · PWM → DCA · 2020–2025 BTS data
Portland to Washington
The PWM–DCA corridor (Portland, ME → Washington, DC) runs ahead of the national average, served by 19 carriers across roughly 482 miles.
Data updated 2026-06-13
- 80.2%
- On-time
- +1.2 pts
- vs US avg
- 104 min
- Delay when late
- 6,201
- Flights
Cancelled
3.0%
Best Month
Feb 2024 94%
Worst Month
Feb 2025 62%
Distance
482 mi
Carriers
19
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 90 | 21 | 3 | 0 | OH,AA |
| Nov 2025 | 88 | 15 | 1 | 1 | OH,AA,YX |
| Oct 2025 | 121 | 30 | 2 | 0 | AA,OH,YX |
| Sep 2025 | 116 | 29 | 0 | 1 | OH,AA |
| Aug 2025 | 114 | 24 | 1 | 1 | AA,YX,OH |
| Jul 2025 | 88 | 25 | 8 | 1 | AA,OH,YX,MQ |
| Jun 2025 | 90 | 30 | 3 | 1 | AA,OH,YX,MQ |
| May 2025 | 119 | 38 | 4 | 0 | AA,OH,YX |
| Apr 2025 | 116 | 28 | 1 | 0 | OH,YX,AA |
| Mar 2025 | 119 | 27 | 3 | 0 | AA,OH,YX |
| Feb 2025 | 108 | 41 | 17 | 2 | AA,OH |
| Jan 2025 | 120 | 20 | 14 | 1 | AA,OH,YX |
| Dec 2024 | 113 | 30 | 1 | 1 | AA,OH,YX |
| Nov 2024 | 111 | 17 | 0 | 0 | MQ,YX,OH,AA |
| Oct 2024 | 123 | 13 | 0 | 0 | MQ,YX,AA,OH |
| Sep 2024 | 114 | 11 | 0 | 0 | YX,AA |
| Aug 2024 | 100 | 28 | 5 | 1 | AA,MQ,OH,YX |
| Jul 2024 | 93 | 23 | 1 | 2 | AA,OH,YX |
| Jun 2024 | 94 | 24 | 1 | 0 | AA,OH,YX |
| May 2024 | 115 | 19 | 1 | 1 | AA,OH,YX |
| Apr 2024 | 107 | 17 | 2 | 1 | AA,OH,YX |
| Mar 2024 | 111 | 19 | 0 | 0 | AA,OH,YX |
| Feb 2024 | 108 | 7 | 0 | 0 | OH,YX |
| Jan 2024 | 110 | 31 | 10 | 1 | AA,OH |
Cancellation Rate
3.0%
78 of 2,588 flights
Diversion Rate
0.6%
15 of 2,588 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PWM - Portland
Full on-time, delay-cause, and seasonal performance for Portland, ME.
Origin airport →DCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See PWM and DCA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PWM–DCA.
Routes with a similar on-time rate
What the Data Says About PWM to DCA
6,201 tracked flights put the PWM to DCA pairing (Portland to Washington) at a 80.2% on-time rate, squarely in line with the wider network. Delays that do occur run 104.3 minutes on average. Across the 482-mile route and its 19 carriers, the trailing 24 months show 3.0% cancelled and 0.6% diverted (2,588 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while Feb 2025 came in at just 62% - a 32-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.