Route · IAD → AUS · 2020–2025 BTS data
Washington to Austin
The IAD–AUS corridor (Washington, DC → Austin, TX) runs ahead of the national average, served by 26 carriers across roughly 1,297 miles.
Data updated 2026-06-13
- 82.3%
- On-time
- +3.3 pts
- vs US avg
- 80 min
- Delay when late
- 5,608
- Flights
Cancelled
0.9%
Best Month
Oct 2024 97%
Worst Month
Jun 2025 64%
Distance
1,297 mi
Carriers
26
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 77 | 18 | 0 | 0 | UA |
| Nov 2025 | 79 | 10 | 0 | 1 | UA |
| Oct 2025 | 89 | 7 | 0 | 0 | UA |
| Sep 2025 | 109 | 8 | 0 | 0 | UA |
| Aug 2025 | 102 | 15 | 2 | 0 | YX,G4,UA |
| Jul 2025 | 96 | 29 | 0 | 0 | UA,YX,G4 |
| Jun 2025 | 113 | 41 | 2 | 1 | UA,YX,G4 |
| May 2025 | 119 | 39 | 0 | 0 | UA,YX |
| Apr 2025 | 116 | 22 | 0 | 0 | UA,YX |
| Mar 2025 | 87 | 11 | 1 | 0 | UA |
| Feb 2025 | 65 | 12 | 0 | 0 | UA,YX |
| Jan 2025 | 51 | 9 | 1 | 0 | UA,YX |
| Dec 2024 | 63 | 7 | 0 | 0 | UA |
| Nov 2024 | 74 | 6 | 1 | 0 | UA |
| Oct 2024 | 87 | 3 | 0 | 0 | UA |
| Sep 2024 | 75 | 7 | 1 | 0 | UA |
| Aug 2024 | 73 | 20 | 3 | 0 | G4,UA |
| Jul 2024 | 76 | 25 | 1 | 0 | G4,UA |
| Jun 2024 | 78 | 16 | 1 | 0 | G4,UA |
| May 2024 | 94 | 18 | 0 | 0 | G4,UA |
| Apr 2024 | 89 | 15 | 0 | 0 | G4,UA |
| Mar 2024 | 87 | 16 | 0 | 0 | G4,UA |
| Feb 2024 | 77 | 5 | 0 | 0 | G4,UA,YX |
| Jan 2024 | 99 | 25 | 5 | 0 | G4,MQ,YX,UA |
Cancellation Rate
0.9%
18 of 2,075 flights
Diversion Rate
0.1%
2 of 2,075 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Origin airport →AUS - Austin
Full on-time, delay-cause, and seasonal performance for Austin, TX.
Destination airport →Compare the two airports
See IAD and AUS side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAD–AUS.
Routes with a similar on-time rate
What the Data Says About IAD to AUS
Bureau of Transportation Statistics records show Washington to Austin (IAD to AUS) running a 82.3% on-time rate over 5,608 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 79.7 minutes. The 1,297-mile corridor is served by 26 carriers, and over the last 24 months 0.9% of 2,075 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 97% on-time, while Jun 2025 came in at just 64% - a 33-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.