United Airlines PHX to IAD on-time performance
United Airlines nonstop flights from Phoenix to Washington · Aug 2025 – Jul 2026
On-time arrivals
91%
arrived < 15 min late
Cancelled
0.8%
6 flights
Avg arrival delay
8 min
71 min when late
Rank on route
#1 of 2
route average 86% on time
Key facts
- United Airlines flights on PHX to IAD arrived on time 91% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 3% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (45%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)45%
- Late-arriving aircraft35%
- Air traffic control & airport congestion18%
- Extreme weather2%
- Security0%
Other airlines on PHX to IAD
- Southwest Airlines74% on time · 12 min avg delay
Full PHX to IAD comparison →
United Airlines on-time record across all routes →
731 United Airlines flights tracked on this route; 6 cancelled, 4 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.