United Airlines IAD to DTW on-time performance
United Airlines nonstop flights from Washington to Detroit · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
11 min
49 min when late
Rank on route
#2 of 4
route average 78% on time
Key facts
- United Airlines flights on IAD to DTW arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 8% arrived an hour or more late.
- That ranks #2 of 4 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)54%
- Air traffic control & airport congestion19%
- Late-arriving aircraft19%
- Extreme weather7%
- Security0%
Other airlines on IAD to DTW
- SkyWest Airlines77% on time · 29 min avg delay
- Republic Airways77% on time · 16 min avg delay
- Delta Air Lines81% on time · 16 min avg delay
Full IAD to DTW comparison →
United Airlines on-time record across all routes →
39 United Airlines flights tracked on this route; 0 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.