Route · SFO → IAD · 2020–2025 BTS data
San Francisco to Washington
The SFO–IAD corridor (San Francisco, CA → Washington, DC) runs ahead of the national average, served by 3 carriers across roughly 2,419 miles.
Data updated 2026-06-13
- 82.9%
- On-time
- +3.9 pts
- vs US avg
- 65 min
- Delay when late
- 13,278
- Flights
Cancelled
0.9%
Best Month
Apr 2025 91%
Worst Month
Jul 2025 66%
Distance
2,419 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 245 | 33 | 0 | 0 | UA |
| Nov 2025 | 229 | 32 | 1 | 0 | UA |
| Oct 2025 | 247 | 27 | 1 | 0 | UA |
| Sep 2025 | 206 | 39 | 0 | 0 | UA |
| Aug 2025 | 254 | 51 | 3 | 0 | UA,AS |
| Jul 2025 | 267 | 92 | 2 | 1 | AS,UA |
| Jun 2025 | 275 | 83 | 0 | 3 | AS,UA |
| May 2025 | 273 | 72 | 1 | 1 | AS,UA |
| Apr 2025 | 286 | 27 | 0 | 0 | UA,AS |
| Mar 2025 | 229 | 40 | 0 | 0 | AS,UA |
| Feb 2025 | 174 | 23 | 0 | 1 | UA |
| Jan 2025 | 191 | 22 | 3 | 0 | AS,UA |
| Dec 2024 | 260 | 51 | 1 | 0 | AS,UA |
| Nov 2024 | 258 | 29 | 0 | 1 | UA,AS |
| Oct 2024 | 267 | 28 | 0 | 0 | UA,AS |
| Sep 2024 | 244 | 26 | 1 | 0 | UA,AS |
| Aug 2024 | 248 | 29 | 4 | 3 | AS,UA |
| Jul 2024 | 249 | 45 | 2 | 0 | AS,UA |
| Jun 2024 | 241 | 41 | 0 | 0 | AS,UA |
| May 2024 | 242 | 45 | 0 | 1 | AS,UA |
| Apr 2024 | 228 | 44 | 0 | 0 | AS,UA |
| Mar 2024 | 213 | 51 | 1 | 0 | AS,UA |
| Feb 2024 | 152 | 33 | 1 | 0 | UA |
| Jan 2024 | 155 | 44 | 28 | 1 | AS,UA |
Cancellation Rate
0.9%
49 of 5,633 flights
Diversion Rate
0.2%
12 of 5,633 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
Origin airport →IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See SFO 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 SFO–IAD.
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What the Data Says About SFO to IAD
Bureau of Transportation Statistics records show San Francisco to Washington (SFO to IAD) running a 82.9% on-time rate over 13,278 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 65.3 minutes. The 2,419-mile corridor is served by 3 carriers, and over the last 24 months 0.9% of 5,633 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 91% on-time, while Jul 2025 came in at just 66% - a 25-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.