Flight UA632
United Airlines flight UA632
Looking for UA632 in the airâŚ
Atlanta (ATL) to Dulles (IAD)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 71 minutes. It was cancelled 1.7% of the time.
- On-time arrivals
- 87.0%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 298
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 51%
- Late-arriving aircraft 30%
- Air traffic control & airport 18%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dulles (IAD) to Hartford (BDL)
Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 85 minutes. It was cancelled 1.3% of the time.
- On-time arrivals
- 89.9%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 152
- Scheduled flights in the period
What caused the delays
- Extreme weather 46%
- Air traffic control & airport 32%
- Airline (crew, maintenance, cleaning) 21%
- Late-arriving aircraft 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.7% | 30 |
| October 2025 | 87.1% | 31 |
| November 2025 | 75.9% | 29 |
| December 2025 | 92.0% | 25 |
| January 2026 | 75.0% | 21 |
| February 2026 | 88.9% | 18 |
| March 2026 | 83.9% | 32 |
| April 2026 | 96.6% | 59 |
| May 2026 | 83.0% | 53 |
| June 2026 | 93.6% | 48 |
| July 2026 | 92.7% | 46 |
| August 2026 | 82.8% | 58 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 â August 2026. Covers flights operated by reporting U.S. carriers. About our data