Route
IAD → PIT
Washington Dulles International Airport Pittsburgh International Airport
How punctual is this route?
- On-time arrivals
- 84.3%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 82 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,213
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 21%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.1% | 111 |
| October 2025 | 90.1% | 111 |
| November 2025 | 88.7% | 108 |
| December 2025 | 77.5% | 102 |
| January 2026 | 88.8% | 113 |
| February 2026 | 87.4% | 104 |
| March 2026 | 73.7% | 115 |
| April 2026 | 94.8% | 96 |
| May 2026 | 87.4% | 88 |
| June 2026 | 76.5% | 86 |
| July 2026 | 76.2% | 88 |
| August 2026 | 77.3% | 91 |
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 |
|---|---|---|---|---|
| Republic Airways | 696 | 81.9% | 2.4% | 79 min |
| United Airlines | 517 | 87.5% | 0.8% | 87 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX3540
21% late · 334 flights
-
UA726
8% late · 135 flights
-
YX3541
10% late · 113 flights
-
UA2066
12% late · 86 flights
-
YX3579
28% late · 81 flights
-
UA1734
2% late · 52 flights
-
UA543
17% late · 52 flights
-
UA2070
18% late · 45 flights
-
UA744
23% late · 32 flights
-
UA765
29% late · 31 flights
-
YX3558
14% late · 30 flights
-
YX3438
0% late · 26 flights
-
UA1858
8% late · 25 flights
-
UA2673
0% late · 21 flights
-
YX3517
29% late · 21 flights
-
UA274
20% late · 20 flights
-
YX3413
11% late · 20 flights
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