Flight UA1579
United Airlines flight UA1579
Looking for UA1579 in the airâŚ
Alerts at this flight's airports
Denver (DEN) to New York (LGA)
Historically, this flight arrives 15+ minutes late 32% of the time, and when it is late the delay averages 90 minutes. It was cancelled 1.9% of the time.
- On-time arrivals
- 68.3%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 90 min
- Flights arriving 15+ minutes late
- Flights tracked
- 361
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 59%
- Late-arriving aircraft 27%
- Airline (crew, maintenance, cleaning) 12%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (LGA) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 54% of the time, and when it is late the delay averages 86 minutes. It was cancelled 9.7% of the time.
- On-time arrivals
- 46.4%
- Less than 15 minutes late
- Cancelled
- 9.7%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 73%
- Air traffic control & airport 18%
- Airline (crew, maintenance, cleaning) 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- â
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
Kansas City (MCI) to Denver (DEN)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- â
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
Chicago (ORD) to Savannah (SAV)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- â
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.9% | 36 |
| October 2025 | 79.7% | 61 |
| November 2025 | 63.5% | 54 |
| December 2025 | 70.0% | 32 |
| January 2026 | 70.0% | 31 |
| February 2026 | 73.1% | 28 |
| March 2026 | 61.3% | 31 |
| April 2026 | 83.9% | 31 |
| May 2026 | 84.4% | 45 |
| June 2026 | 62.1% | 30 |
| July 2026 | 55.6% | 31 |
| August 2026 | 44.8% | 31 |
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