Route · IAD → PHX · 2020–2025 BTS data
Washington to Phoenix
The IAD–PHX corridor (Washington, DC → Phoenix, AZ) runs ahead of the national average, served by 4 carriers across roughly 1,956 miles.
Data updated 2026-06-13
- 83%
- On-time
- +4 pts
- vs US avg
- 68 min
- Delay when late
- 4,098
- Flights
Cancelled
1.0%
Best Month
Oct 2024 95%
Worst Month
Jul 2025 60%
Distance
1,956 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 108 | 19 | 0 | 0 | WN,UA |
| Nov 2025 | 109 | 27 | 2 | 0 | UA,WN |
| Oct 2025 | 97 | 24 | 0 | 0 | UA,WN |
| Sep 2025 | 87 | 21 | 0 | 1 | UA,WN |
| Aug 2025 | 88 | 14 | 0 | 1 | WN,UA |
| Jul 2025 | 92 | 37 | 2 | 0 | UA,WN |
| Jun 2025 | 90 | 25 | 0 | 0 | UA,WN |
| May 2025 | 113 | 24 | 0 | 0 | UA,WN |
| Apr 2025 | 120 | 25 | 0 | 0 | UA,WN |
| Mar 2025 | 124 | 12 | 0 | 1 | UA,WN |
| Feb 2025 | 94 | 13 | 0 | 0 | UA,WN |
| Jan 2025 | 87 | 22 | 2 | 0 | UA,WN |
| Dec 2024 | 124 | 15 | 0 | 0 | UA,WN |
| Nov 2024 | 117 | 12 | 1 | 1 | UA,WN |
| Oct 2024 | 98 | 5 | 0 | 0 | UA,WN |
| Sep 2024 | 90 | 12 | 0 | 0 | WN,UA |
| Aug 2024 | 93 | 20 | 2 | 0 | WN,UA |
| Jul 2024 | 93 | 32 | 2 | 1 | UA,WN |
| Jun 2024 | 90 | 29 | 0 | 0 | UA,WN |
| May 2024 | 106 | 17 | 0 | 0 | UA,WN |
| Apr 2024 | 105 | 14 | 0 | 0 | UA,WN |
| Mar 2024 | 87 | 9 | 0 | 0 | UA |
| Feb 2024 | 44 | 2 | 0 | 0 | UA |
| Jan 2024 | 39 | 7 | 13 | 0 | UA |
Cancellation Rate
1.0%
24 of 2,295 flights
Diversion Rate
0.2%
5 of 2,295 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 →PHX - Phoenix
Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.
Destination airport →Compare the two airports
See IAD and PHX 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–PHX.
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What the Data Says About IAD to PHX
Bureau of Transportation Statistics records show Washington to Phoenix (IAD to PHX) running a 83% on-time rate over 4,098 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 68.4 minutes. The 1,956-mile corridor is served by 4 carriers, and over the last 24 months 1.0% of 2,295 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Jul 2025 came in at just 60% - a 35-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.