Route · AUS → IAD · 2020–2025 BTS data
Austin to Washington
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), AUS to IAD (Austin to Washington) ranks #2235 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 87.1%
- On-time
- +8.1 pts
- vs US avg
- 80 min
- Delay when late
- 5,603
- Flights
- #2235 of 4927
- Corpus placement
Cancelled
0.9%
Best Month
Sep 2025 97%
Worst Month
May 2024 76%
Distance
1,297 mi
Carriers
27
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 77 | 10 | 0 | 0 | UA |
| Nov 2025 | 79 | 10 | 0 | 0 | UA |
| Oct 2025 | 89 | 4 | 0 | 0 | UA |
| Sep 2025 | 110 | 3 | 0 | 0 | UA |
| Aug 2025 | 101 | 11 | 2 | 0 | YX,G4,UA |
| Jul 2025 | 96 | 23 | 0 | 1 | UA,YX,G4 |
| Jun 2025 | 113 | 18 | 2 | 2 | UA,YX,G4 |
| May 2025 | 119 | 17 | 0 | 0 | UA,YX |
| Apr 2025 | 116 | 6 | 0 | 0 | UA,YX |
| Mar 2025 | 87 | 10 | 1 | 0 | UA |
| Feb 2025 | 62 | 14 | 0 | 0 | UA,YX |
| Jan 2025 | 49 | 7 | 1 | 0 | UA,YX |
| Dec 2024 | 63 | 7 | 0 | 0 | UA |
| Nov 2024 | 74 | 6 | 1 | 0 | UA |
| Oct 2024 | 87 | 4 | 0 | 0 | UA |
| Sep 2024 | 75 | 6 | 1 | 0 | UA |
| Aug 2024 | 73 | 9 | 3 | 0 | G4,UA |
| Jul 2024 | 76 | 15 | 1 | 0 | G4,UA |
| Jun 2024 | 78 | 10 | 1 | 0 | G4,UA |
| May 2024 | 94 | 23 | 1 | 0 | G4,UA |
| Apr 2024 | 89 | 6 | 0 | 0 | G4,UA |
| Mar 2024 | 89 | 8 | 0 | 0 | G4,UA |
| Feb 2024 | 77 | 7 | 0 | 0 | G4,UA,YX |
| Jan 2024 | 99 | 13 | 5 | 1 | G4,MQ,YX,UA |
AUS–IAD seasonal on-time pattern
Best: September (91.5%) · weakest: July (80.6%)
Strongest calendar month
September
91.5% on-time · ~101 flights/mo
Busiest calendar month
September
~101 flights/mo avg
Weakest calendar month
July
80.6% on-time · ~88 flights/mo
Cancellation Rate
0.9%
19 of 2,072 flights
Diversion Rate
0.2%
4 of 2,072 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
AUS - Austin
Full on-time, delay-cause, and seasonal performance for Austin, TX.
AUS on-time profileIAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
IAD on-time profileCompare the two airports
See AUS and IAD side by side on delays, cancellations, and reliability.
Compare AUS vs IADOrigin-hub reliability standing
Among AUS's stronger departures
AUS → IAD posts a 87.1% on-time rate, landing in the ≥85% band with 3 of 55 BTS-tracked routes leaving Austin. The same hub also shows 45 mid-band and 7 challenged departures · fleet-wide on-time rank #606 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to AUS–IAD.
Routes with a similar on-time rate
What the Data Says About AUS to IAD
Austin to Washington (AUS to IAD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87.1% on-time rate across 5,603 flights, with delays that do happen averaging 79.8 minutes. The corridor runs roughly 1,297 miles and is served by 27 carriers. Over the most recent 24 months, 19 of 2,072 flights were cancelled (0.9%) and 4 diverted (0.2%).
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 97% on-time, while May 2024 came in at just 76% - a 22-point swing worth factoring into travel timing.
On the multi-year calendar, AUS–IAD peaks in September at 91.5% on-time ; the softest month is July at 80.6%, a 10.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does AUS to IAD rank among US routes by traffic? ▼
How often are flights delayed from AUS to IAD? ▼
What is the cancellation rate for AUS to IAD? ▼
How far is the flight from AUS to IAD? ▼
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Airports on this route
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.
Using AUS–IAD data
AUS–IAD runs 8.1 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare AUS and IAD airport profiles: delay causes and top routes differ even on the same corridor. AUS airport
- If your dates flex, September (91.5% on-time) beats July (80.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 87.1% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.