Route · SAT → IAD · 2020–2025 BTS data
San Antonio to Washington
The SAT–IAD corridor (San Antonio, TX → Washington, DC) runs ahead of the national average, served by 7 carriers across roughly 1,362 miles.
Data updated 2026-06-13
- 91.2%
- On-time
- +12.2 pts
- vs US avg
- 86 min
- Delay when late
- 3,290
- Flights
Cancelled
1.2%
Best Month
Feb 2024 98%
Worst Month
Jan 2025 78%
Distance
1,362 mi
Carriers
7
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 58 | 5 | 0 | 0 | UA |
| Nov 2025 | 60 | 3 | 0 | 0 | UA |
| Oct 2025 | 55 | 3 | 1 | 0 | UA |
| Sep 2025 | 51 | 3 | 0 | 0 | UA |
| Aug 2025 | 51 | 1 | 0 | 0 | UA |
| Jul 2025 | 58 | 7 | 0 | 2 | UA |
| Jun 2025 | 51 | 7 | 0 | 1 | UA |
| May 2025 | 54 | 8 | 1 | 0 | UA |
| Apr 2025 | 56 | 4 | 0 | 0 | UA |
| Mar 2025 | 51 | 2 | 0 | 0 | UA |
| Feb 2025 | 48 | 6 | 0 | 0 | UA |
| Jan 2025 | 54 | 12 | 0 | 0 | UA |
| Dec 2024 | 55 | 8 | 1 | 0 | UA |
| Nov 2024 | 51 | 4 | 0 | 0 | UA |
| Oct 2024 | 57 | 4 | 0 | 0 | UA |
| Sep 2024 | 48 | 4 | 0 | 0 | UA |
| Aug 2024 | 54 | 3 | 2 | 1 | UA |
| Jul 2024 | 58 | 8 | 0 | 0 | UA |
| Jun 2024 | 54 | 10 | 0 | 0 | UA |
| May 2024 | 61 | 9 | 0 | 0 | UA |
| Apr 2024 | 60 | 2 | 0 | 0 | UA |
| Mar 2024 | 54 | 3 | 1 | 0 | UA |
| Feb 2024 | 52 | 1 | 0 | 0 | UA |
| Jan 2024 | 56 | 5 | 10 | 0 | UA |
Cancellation Rate
1.2%
16 of 1,307 flights
Diversion Rate
0.3%
4 of 1,307 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SAT - San Antonio
Full on-time, delay-cause, and seasonal performance for San Antonio, TX.
Origin airport →IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See SAT 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 SAT–IAD.
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What the Data Says About SAT to IAD
San Antonio to Washington (SAT to IAD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 91.2% on-time rate across 3,290 flights, with delays that do happen averaging 86.3 minutes. The corridor runs roughly 1,362 miles and is served by 7 carriers. Over the most recent 24 months, 16 of 1,307 flights were cancelled (1.2%) and 4 diverted (0.3%).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 98% on-time, while Jan 2025 came in at just 78% - a 20-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SAT to IAD? ▼
What is the cancellation rate for SAT to IAD? ▼
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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.