Flight UA1216
United Airlines flight UA1216
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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
Miami (MIA) to Houston (IAH)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 91 minutes. It was cancelled 0.7% of the time.
- On-time arrivals
- 73.8%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 91 min
- Flights arriving 15+ minutes late
- Flights tracked
- 305
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 36%
- Late-arriving aircraft 28%
- Airline (crew, maintenance, cleaning) 27%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Houston (IAH) to Omaha (OMA)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 62 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 256
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 46%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 22%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sacramento (SMF) to Houston (IAH)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 56 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 89.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 56 min
- Flights arriving 15+ minutes late
- Flights tracked
- 46
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 69%
- Air traffic control & airport 30%
- Airline (crew, maintenance, cleaning) 1%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Houston (IAH) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 71.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 42%
- Air traffic control & airport 40%
- Airline (crew, maintenance, cleaning) 12%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Antonio (SAT) to San Francisco (SFO)
Only 3 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
- 3
- Scheduled flights in the period
Houston (IAH) to Philadelphia (PHL)
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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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.8% | 53 |
| October 2025 | 75.0% | 33 |
| November 2025 | 73.7% | 58 |
| December 2025 | 72.1% | 43 |
| January 2026 | 87.1% | 62 |
| February 2026 | 87.0% | 55 |
| March 2026 | 71.0% | 62 |
| April 2026 | 78.3% | 60 |
| May 2026 | 67.7% | 62 |
| June 2026 | 65.5% | 58 |
| July 2026 | 65.0% | 60 |
| August 2026 | 80.0% | 41 |
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