Route
ANC → IAD
Ted Stevens Anchorage International Airport Washington Dulles International Airport
How punctual is this route?
- On-time arrivals
- 77.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 110
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.7% | 7 |
| May 2026 | 81.8% | 11 |
| June 2026 | 76.7% | 30 |
| July 2026 | 74.2% | 31 |
| August 2026 | 77.4% | 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 | 110 | 77.3% | 0.0% | 53 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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UA572
23% late · 110 flights
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