Route
PHX → IAD
Phoenix Sky Harbor International Airport Washington Dulles International Airport
1,956 miles
Return route IAD → PHX →
How punctual is this route?
- On-time arrivals
- 86.1%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 979
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Late-arriving aircraft 29%
- Air traffic control & airport 24%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.8% | 87 |
| October 2025 | 83.5% | 97 |
| November 2025 | 89.8% | 109 |
| December 2025 | 88.0% | 108 |
| January 2026 | 97.9% | 98 |
| February 2026 | 92.6% | 81 |
| March 2026 | 79.6% | 117 |
| April 2026 | 84.6% | 91 |
| May 2026 | 80.9% | 96 |
| June 2026 | 87.9% | 33 |
| July 2026 | 80.0% | 31 |
| August 2026 | 80.0% | 31 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 704 | 90.8% | 0.7% | 67 min |
| Southwest Airlines | 275 | 74.3% | 0.4% | 41 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
Reviews
No reviews yet. Be the first to review this route.