Historical on-time performance
Washington to Anchorage
3,356 miData through May 2026Source: US DOT · BTS
Flights on IAD–ANC arrive on time 58% of the time over the last 12 months.
On-time rate58%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 91 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time58%Median5 minp9080 minCancel1.1%Flights91
Why flights run late
Delay causes
- Airline33%
- Weather23%
- Air traffic (NAS)25%
- Late aircraft19%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 1 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
Keep exploring