United Airlines PIT to IAD on-time performance
United Airlines nonstop flights from Pittsburgh to Washington · Aug 2025 – Jul 2026
On-time arrivals
87%
arrived < 15 min late
Cancelled
0.8%
4 flights
Avg arrival delay
10 min
74 min when late
Rank on route
#2 of 2
route average 89% on time
Key facts
- United Airlines flights on PIT to IAD arrived on time 87% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 89% on time overall.
- The largest source of delay minutes was late-arriving aircraft (68%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft68%
- Air traffic control & airport congestion23%
- Airline (crew, maintenance, cleaning, fueling)7%
- Extreme weather2%
- Security0%
Other airlines on PIT to IAD
- Republic Airways89% on time · 7 min avg delay
Full PIT to IAD comparison →
United Airlines on-time record across all routes →
516 United Airlines flights tracked on this route; 4 cancelled, 0 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.