Route · PIT → IAD · 2020–2025 BTS data
Pittsburgh to Washington
The PIT–IAD corridor (Pittsburgh, PA → Washington, DC) runs ahead of the national average, served by 8 carriers across roughly 182 miles.
Data updated 2026-06-13
- 89.8%
- On-time
- +10.8 pts
- vs US avg
- 74 min
- Delay when late
- 5,240
- Flights
Cancelled
0.7%
Best Month
Sep 2024 94%
Worst Month
Jan 2025 74%
Distance
182 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 102 | 12 | 0 | 0 | YX,UA |
| Nov 2025 | 108 | 10 | 0 | 0 | UA,YX |
| Oct 2025 | 111 | 17 | 0 | 0 | UA,YX |
| Sep 2025 | 111 | 9 | 0 | 0 | UA,YX |
| Aug 2025 | 105 | 12 | 0 | 0 | YX,UA |
| Jul 2025 | 129 | 22 | 9 | 0 | UA,YX |
| Jun 2025 | 99 | 17 | 0 | 0 | YX |
| May 2025 | 110 | 16 | 0 | 0 | UA,YX |
| Apr 2025 | 129 | 13 | 0 | 0 | YX |
| Mar 2025 | 45 | 4 | 0 | 0 | YX |
| Feb 2025 | 61 | 10 | 0 | 0 | YX |
| Jan 2025 | 62 | 16 | 2 | 0 | YX |
| Dec 2024 | 63 | 13 | 0 | 0 | YX |
| Nov 2024 | 81 | 7 | 0 | 0 | YX |
| Oct 2024 | 64 | 8 | 0 | 0 | YX |
| Sep 2024 | 54 | 3 | 0 | 0 | YX |
| Aug 2024 | 41 | 1 | 1 | 0 | YX |
| Jul 2024 | 44 | 5 | 0 | 0 | YX |
| Jun 2024 | 30 | 2 | 0 | 0 | YX |
| May 2024 | 51 | 5 | 0 | 0 | YX |
| Apr 2024 | 52 | 3 | 0 | 0 | UA,YX |
| Mar 2024 | 72 | 6 | 0 | 0 | YX,UA |
| Feb 2024 | 50 | 0 | 0 | 0 | UA,YX |
| Jan 2024 | 53 | 7 | 0 | 0 | YX,UA |
Cancellation Rate
0.7%
12 of 1,827 flights
Diversion Rate
0.0%
0 of 1,827 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PIT - Pittsburgh
Full on-time, delay-cause, and seasonal performance for Pittsburgh, PA.
Origin airport →IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See PIT 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 PIT–IAD.
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What the Data Says About PIT to IAD
Pittsburgh to Washington (PIT to IAD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.8% on-time rate across 5,240 flights, with delays that do happen averaging 74.2 minutes. The corridor runs roughly 182 miles and is served by 8 carriers. Over the most recent 24 months, 12 of 1,827 flights were cancelled (0.7%) and 0 diverted (0.0%).
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 94% on-time, while Jan 2025 came in at just 74% - a 20-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.