Route profile
DCA→AUS
Flight reliability, delays and best times to fly from Washington to Austin, 1,315 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 1% of comparable major US routes (4,598 compared)
Calculated from 1,126 flights. How this is calculated · What counts as on time
DCA → AUS arrives on time 55.9% of the time; the return trip, AUS → DCA, arrives on time 71.6% of the time, a 15.8-point gap between the two directions of the same city pair.
DCA → AUS spends 25.9 minutes on the ground on a 1,315-mile trip: 19.6 minutes from pushback to wheels-up at DCA and 6.3 minutes from touchdown to gate at AUS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Which day you fly matters unusually much here, a wider weekday spread than 100% of 4,467 comparable routes.
70.6% on time on a typical Saturday, against 46.0% on a Thursday.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,467 in the comparison.
What sets this route apart
Where DCA to AUS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
DCA to AUS struggles most at 5 PM: 52.5% of its flights scheduled then arrive on time, 16.1 points behind the 68.6% on routes of similar length at the same hour. Against all other routes the gap is 17.3 points.
Wednesday is the day DCA to AUS slips furthest against routes of similar length, 49.1% on time where they average 79.9%, 30.8 points lower. Against all other routes the gap is 31.7 points.
In July, DCA to AUS runs 40.6 points below routes of similar length, 28.9% on time to 69.5%. Against all other routes the gap is 40.8 points.
Southwest Airlines’ flights on DCA to AUS arrive on time 55.9% of the time, 19.9 points below the 75.8% it manages on its routes of similar length. Against all other routes the gap is 21.5 points.
DCA to AUS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 5 PM departures | 52.5% | routes of similar length | 68.6% | −16.1 pts | 887 here, 109,310 there |
| Weekday: Wednesday | 49.1% | routes of similar length | 79.9% | −30.8 pts | 161 here, 240,876 there |
| Month: July | 28.9% | routes of similar length | 69.5% | −40.6 pts | 121 here, 192,649 there |
| Airline: Southwest Airlines | 55.9% | routes of similar length | 75.8% | −19.9 pts | 1,119 here, 389,911 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,315 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
75 min late
against a median of 10 min late
DCA → AUS has an average that understates its risk: a typical arrival is 10 min late, but the worst tenth are 65 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 1,126 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at AUS after arriving from DCA.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 65% | Likely to miss |
| 45 min | 43% | Likely to miss |
| 60 min | 28% | High risk |
| 90 min | 14% | Some risk |
| 120 min | 7.5% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.62% of the time and diverts 0.00% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,119 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 75 minutes late (90th-percentile gate arrival delay), over 1,126 operations.
Any other layover length: connection checker.
Why DCA → AUS runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for DCA → AUS. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on DCA → AUS, at 47.9%: flights here mostly leave late because the plane came in late.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Southwest Airlines | 1,126 | 55.9% | 0.62% | 10 min | 13.9% |
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Thursday the least, a gap of 24.6 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 54.4% against 53.8% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 1,126 DCA → AUS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed