Route · IAD → BUF · 2020–2025 BTS data
Washington to Buffalo
The IAD–BUF corridor (Washington, DC → Buffalo, NY) runs ahead of the national average, served by 8 carriers across roughly 283 miles.
Data updated 2026-06-13
- 86.1%
- On-time
- +7.1 pts
- vs US avg
- 88 min
- Delay when late
- 503
- Flights
Cancelled
6.2%
Best Month
Feb 2022 87%
Worst Month
Mar 2022 85%
Distance
283 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Jul 2025 | 30 | 10 | 3 | 0 | YX |
| May 2025 | 42 | 8 | 0 | 0 | YX |
| Nov 2024 | 39 | 5 | 0 | 0 | YX |
| Oct 2024 | 31 | 1 | 0 | 0 | UA,YX |
| Apr 2024 | 30 | 8 | 0 | 0 | YX |
| Oct 2022 | 31 | 3 | 0 | 0 | YV |
| Apr 2022 | 30 | 5 | 0 | 0 | YV |
| Mar 2022 | 52 | 8 | 0 | 0 | UA,YV,YX |
| Feb 2022 | 54 | 7 | 4 | 0 | YV,YX,UA |
| Jan 2022 | 31 | 6 | 5 | 0 | UA,YV |
| Oct 2021 | 56 | 8 | 0 | 0 | UA,YV,YX |
| Aug 2020 | 30 | 0 | 0 | 0 | YV,YX |
| Apr 2020 | 47 | 1 | 19 | 0 | OO,YV |
Cancellation Rate
6.2%
31 of 503 flights
Diversion Rate
0.0%
0 of 503 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Origin airport →BUF - Buffalo
Full on-time, delay-cause, and seasonal performance for Buffalo, NY.
Destination airport →Compare the two airports
See IAD and BUF side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAD–BUF.
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What the Data Says About IAD to BUF
Washington to Buffalo (IAD to BUF) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.1% on-time rate across 503 flights, with delays that do happen averaging 87.9 minutes. The corridor runs roughly 283 miles and is served by 8 carriers. Over the most recent 24 months, 31 of 503 flights were cancelled (6.2%) and 0 diverted (0.0%).
Monthly on-time rates stay fairly consistent on this route, ranging from 85% in Mar 2022 to 87% in Feb 2022 - only a 2-point spread.
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.