Route
IAD → BDL
Washington Dulles International Airport Bradley International Airport
How punctual is this route?
- On-time arrivals
- 85.9%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,082
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 31%
- Air traffic control & airport 17%
- Extreme weather 14%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.9% | 107 |
| October 2025 | 89.5% | 95 |
| November 2025 | 81.0% | 79 |
| December 2025 | 86.7% | 90 |
| January 2026 | 93.8% | 85 |
| February 2026 | 89.3% | 90 |
| March 2026 | 82.1% | 111 |
| April 2026 | 93.1% | 102 |
| May 2026 | 83.2% | 95 |
| June 2026 | 83.1% | 85 |
| July 2026 | 73.7% | 60 |
| August 2026 | 81.9% | 83 |
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 |
|---|---|---|---|---|
| United Airlines | 941 | 85.8% | 1.2% | 69 min |
| Republic Airways | 141 | 86.6% | 5.0% | 83 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA444
19% late · 342 flights
-
UA632
10% late · 152 flights
-
UA2268
16% late · 139 flights
-
UA1257
10% late · 115 flights
-
UA1279
6% late · 50 flights
-
YX3587
13% late · 42 flights
-
UA203
28% late · 32 flights
-
UA2628
7% late · 27 flights
-
YX3444
14% late · 24 flights
-
UA1349
4% late · 23 flights
-
UA1562
10% late · 21 flights
-
UA2849
0% late · 20 flights
-
YX3673
26% late · 20 flights
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