Route · SEA → AUS · 2020–2025 BTS data
Seattle to Austin
The SEA–AUS corridor (Seattle, WA → Austin, TX) runs behind the national average, served by 6 carriers across roughly 1,770 miles.
Data updated 2026-06-13
- 78.5%
- On-time
- -0.5 pts
- vs US avg
- 60 min
- Delay when late
- 10,177
- Flights
Cancelled
0.7%
Best Month
Feb 2024 90%
Worst Month
Jul 2025 61%
Distance
1,770 mi
Carriers
6
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 169 | 40 | 1 | 0 | DL,AS |
| Nov 2025 | 172 | 35 | 2 | 1 | AS,DL |
| Oct 2025 | 174 | 25 | 4 | 0 | AS,DL |
| Sep 2025 | 167 | 25 | 1 | 0 | DL,AS |
| Aug 2025 | 195 | 47 | 1 | 1 | AS,DL |
| Jul 2025 | 208 | 82 | 2 | 0 | AS,DL |
| Jun 2025 | 203 | 71 | 0 | 1 | AS,DL |
| May 2025 | 198 | 70 | 1 | 0 | AS,DL |
| Apr 2025 | 175 | 24 | 0 | 0 | DL,AS |
| Mar 2025 | 167 | 22 | 0 | 2 | AS,DL |
| Feb 2025 | 106 | 18 | 0 | 0 | AS,DL |
| Jan 2025 | 113 | 18 | 0 | 0 | AS,DL |
| Dec 2024 | 156 | 40 | 0 | 0 | AS,DL |
| Nov 2024 | 185 | 32 | 2 | 0 | AS,DL |
| Oct 2024 | 196 | 37 | 0 | 0 | AS,DL |
| Sep 2024 | 204 | 34 | 0 | 0 | AS,DL |
| Aug 2024 | 194 | 59 | 0 | 0 | AS,DL |
| Jul 2024 | 178 | 60 | 3 | 3 | AS,DL |
| Jun 2024 | 174 | 56 | 2 | 0 | AS,DL |
| May 2024 | 181 | 58 | 0 | 1 | AS,DL |
| Apr 2024 | 169 | 36 | 0 | 0 | AS,DL |
| Mar 2024 | 146 | 36 | 0 | 0 | AS,DL |
| Feb 2024 | 116 | 12 | 0 | 0 | AS,DL |
| Jan 2024 | 124 | 25 | 10 | 1 | AS,DL |
Cancellation Rate
0.7%
29 of 4,070 flights
Diversion Rate
0.2%
10 of 4,070 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Origin airport →AUS - Austin
Full on-time, delay-cause, and seasonal performance for Austin, TX.
Destination airport →Compare the two airports
See SEA 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 SEA–AUS.
Routes with a similar on-time rate
What the Data Says About SEA to AUS
10,177 tracked flights put the SEA to AUS pairing (Seattle to Austin) at a 78.5% on-time rate, squarely in line with the wider network. Delays that do occur run 60.2 minutes on average. Across the 1,770-mile route and its 6 carriers, the trailing 24 months show 0.7% cancelled and 0.2% diverted (4,070 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 90% on-time, while Jul 2025 came in at just 61% - a 29-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.