Route
PIT → IAD
Pittsburgh International Airport Washington Dulles International Airport
How punctual is this route?
- On-time arrivals
- 87.9%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 74 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,210
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Air traffic control & airport 32%
- Airline (crew, maintenance, cleaning) 16%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.9% | 111 |
| October 2025 | 84.7% | 111 |
| November 2025 | 90.7% | 108 |
| December 2025 | 88.2% | 102 |
| January 2026 | 92.5% | 112 |
| February 2026 | 88.3% | 104 |
| March 2026 | 87.7% | 114 |
| April 2026 | 90.6% | 96 |
| May 2026 | 92.0% | 88 |
| June 2026 | 83.5% | 86 |
| July 2026 | 81.5% | 88 |
| August 2026 | 80.9% | 90 |
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 | 693 | 89.4% | 1.9% | 63 min |
| United Airlines | 517 | 86.0% | 0.8% | 86 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX3679
3% late · 360 flights
-
YX3579
18% late · 102 flights
-
YX3449
26% late · 80 flights
-
UA2607
28% late · 70 flights
-
UA1697
9% late · 57 flights
-
UA1689
4% late · 53 flights
-
UA1922
10% late · 52 flights
-
UA1497
11% late · 47 flights
-
UA1430
5% late · 42 flights
-
UA1728
13% late · 32 flights
-
UA2000
23% late · 31 flights
-
YX3622
46% late · 26 flights
-
UA1082
12% late · 25 flights
-
UA2081
24% late · 25 flights
-
UA567
17% late · 24 flights
-
UA452
24% late · 21 flights
-
YX3667
19% late · 21 flights
-
UA1385
10% late · 20 flights
-
YX3715
10% late · 20 flights
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