Flight UA1779
United Airlines flight UA1779
Looking for UA1779 in the airâŚ
Alerts at this flight's airports
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
San Diego (SAN) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 64 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 64.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 364
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 62%
- Late-arriving aircraft 25%
- Airline (crew, maintenance, cleaning) 12%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 72 minutes. It was cancelled 3.0% of the time.
- On-time arrivals
- 66.3%
- Less than 15 minutes late
- Cancelled
- 3.0%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 202
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 55%
- Air traffic control & airport 21%
- Airline (crew, maintenance, cleaning) 20%
- Extreme weather 4%
- 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 | 71.4% | 49 |
| October 2025 | 62.7% | 59 |
| November 2025 | 68.1% | 49 |
| December 2025 | 68.8% | 32 |
| January 2026 | 64.5% | 31 |
| February 2026 | 78.6% | 28 |
| March 2026 | 59.4% | 33 |
| April 2026 | 68.6% | 51 |
| May 2026 | 72.2% | 54 |
| June 2026 | 65.5% | 57 |
| July 2026 | 60.3% | 61 |
| August 2026 | 53.2% | 62 |
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